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	<title>Comments on: Proving a negative and the onus of proof</title>
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	<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/</link>
	<description>Risk in a Hypermobile World</description>
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		<title>By: Jim Tubman</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-16096</link>
		<dc:creator>Jim Tubman</dc:creator>
		<pubDate>Fri, 16 Jan 2009 16:23:12 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-16096</guid>
		<description>As a follow-up to my last comment, I have found more information to suggest that the US Airways flight landing in the Hudson River on January 15, 2009, is the only recorded successful water landing of an airliner:

http://online.wsj.com/article/SB123205611103787217.html

&quot;Although commercial jetliners are equipped with life vests and inflatable slides, there have been few successful attempts at water landings during the jet age. Indeed, even though pilots go through the motions of learning to ditch a plane in water, the generally held belief is that such landings would almost certainly result in fatalities.&quot;

All that said, I hope that there is no similar disproof of the bicycle bomb theory.</description>
		<content:encoded><![CDATA[<p>As a follow-up to my last comment, I have found more information to suggest that the US Airways flight landing in the Hudson River on January 15, 2009, is the only recorded successful water landing of an airliner:</p>
<p><a href="http://online.wsj.com/article/SB123205611103787217.html" rel="nofollow">http://online.wsj.com/article/SB123205611103787217.html</a></p>
<p>&#8220;Although commercial jetliners are equipped with life vests and inflatable slides, there have been few successful attempts at water landings during the jet age. Indeed, even though pilots go through the motions of learning to ditch a plane in water, the generally held belief is that such landings would almost certainly result in fatalities.&#8221;</p>
<p>All that said, I hope that there is no similar disproof of the bicycle bomb theory.</p>
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		<title>By: Jim Tubman</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-16087</link>
		<dc:creator>Jim Tubman</dc:creator>
		<pubDate>Thu, 15 Jan 2009 21:21:54 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-16087</guid>
		<description>Well, here is an article about a plane going into New York&#039;s Hudson River, and it looks like the passengers are wearing their life vests.

http://www.cbc.ca/world/story/2009/01/15/plane-hudson.html

Whether the vests saved anyone&#039;s life in this instance is not yet known, although it is easy enough to imagine someone falling into the water during the evacuation. (The life vest would prevent them from drowning, so that they could die of hypothermia instead.)</description>
		<content:encoded><![CDATA[<p>Well, here is an article about a plane going into New York&#8217;s Hudson River, and it looks like the passengers are wearing their life vests.</p>
<p><a href="http://www.cbc.ca/world/story/2009/01/15/plane-hudson.html" rel="nofollow">http://www.cbc.ca/world/story/2009/01/15/plane-hudson.html</a></p>
<p>Whether the vests saved anyone&#8217;s life in this instance is not yet known, although it is easy enough to imagine someone falling into the water during the evacuation. (The life vest would prevent them from drowning, so that they could die of hypothermia instead.)</p>
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		<title>By: Kevin O'Leary</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15763</link>
		<dc:creator>Kevin O'Leary</dc:creator>
		<pubDate>Sat, 22 Nov 2008 21:23:51 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15763</guid>
		<description>Perhaps the issue isn&#039;t so much about bicycles, but about the potential risk posed by any property left unattended where it could pose a threat in a vulnerable location.</description>
		<content:encoded><![CDATA[<p>Perhaps the issue isn&#8217;t so much about bicycles, but about the potential risk posed by any property left unattended where it could pose a threat in a vulnerable location.</p>
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		<title>By: Martin Parkinson</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15712</link>
		<dc:creator>Martin Parkinson</dc:creator>
		<pubDate>Thu, 13 Nov 2008 11:13:34 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15712</guid>
		<description>Ooh - a comment from David Hembrow! Not that I&#039;m stirring, but he recently posted something interesting about shared spaced on his blog and I&#039;d been wondering what JA might think of it ...</description>
		<content:encoded><![CDATA[<p>Ooh &#8211; a comment from David Hembrow! Not that I&#8217;m stirring, but he recently posted something interesting about shared spaced on his blog and I&#8217;d been wondering what JA might think of it &#8230;</p>
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		<title>By: David Hembrow</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15711</link>
		<dc:creator>David Hembrow</dc:creator>
		<pubDate>Thu, 13 Nov 2008 08:48:48 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15711</guid>
		<description>There are an awful lot of silly ideas like this floating around about bicycles.

I think it&#039;s simply down to the general public&#039;s lack of understanding of what a bicycle is, and what it&#039;s good for. Many people in the UK simply seem to fear bicycles.

One of the first things I noticed here relative to the UK is that in the centre of the city pedestrians don&#039;t pull their children away from you and give you a hard stare if your bicycle comes within a few metres. They simply ignore you as you cycle by.

It has always puzzled me why there are so many letters to newspapers in the UK from people have been been &quot;nearly killed&quot; by cyclists as it&#039;s well out of all proportion to the danger.

To me, a near death experience would probably involve a pretty major injury and a long hospital stay. But for them, merely seeing a bike at close quarters seems to be enough.

It&#039;s the same with the &quot;bombs&quot;. Whether or not one has ever existed isn&#039;t really the point. It has been adequately demonstrated that bicycle bombs are at the very least extremely rare and in a cycle hostile place such as the UK there are much better ways of carrying around large quantities of high explosives without detection than by putting it into bicycle frames.

The whole thing is much more of a fear of bicycles than a fear of actual bombs.</description>
		<content:encoded><![CDATA[<p>There are an awful lot of silly ideas like this floating around about bicycles.</p>
<p>I think it&#8217;s simply down to the general public&#8217;s lack of understanding of what a bicycle is, and what it&#8217;s good for. Many people in the UK simply seem to fear bicycles.</p>
<p>One of the first things I noticed here relative to the UK is that in the centre of the city pedestrians don&#8217;t pull their children away from you and give you a hard stare if your bicycle comes within a few metres. They simply ignore you as you cycle by.</p>
<p>It has always puzzled me why there are so many letters to newspapers in the UK from people have been been &#8220;nearly killed&#8221; by cyclists as it&#8217;s well out of all proportion to the danger.</p>
<p>To me, a near death experience would probably involve a pretty major injury and a long hospital stay. But for them, merely seeing a bike at close quarters seems to be enough.</p>
<p>It&#8217;s the same with the &#8220;bombs&#8221;. Whether or not one has ever existed isn&#8217;t really the point. It has been adequately demonstrated that bicycle bombs are at the very least extremely rare and in a cycle hostile place such as the UK there are much better ways of carrying around large quantities of high explosives without detection than by putting it into bicycle frames.</p>
<p>The whole thing is much more of a fear of bicycles than a fear of actual bombs.</p>
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		<title>By: Chris Hutt</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15703</link>
		<dc:creator>Chris Hutt</dc:creator>
		<pubDate>Wed, 12 Nov 2008 08:16:42 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15703</guid>
		<description>AKP, a bomb carried on a bicycle is not strictly a bicycle bomb - i.e. one using the bicycle frame as a casing. The bicycles removed from parts of Westminster do not, for the most part, have anything attached to them. The pretext for removing these bicycles is that the frames themselves might conceal bombs.</description>
		<content:encoded><![CDATA[<p>AKP, a bomb carried on a bicycle is not strictly a bicycle bomb &#8211; i.e. one using the bicycle frame as a casing. The bicycles removed from parts of Westminster do not, for the most part, have anything attached to them. The pretext for removing these bicycles is that the frames themselves might conceal bombs.</p>
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		<title>By: AKP</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15701</link>
		<dc:creator>AKP</dc:creator>
		<pubDate>Tue, 11 Nov 2008 22:50:28 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15701</guid>
		<description>Here&#039;s at least one proof against your assertion #1.

http://www.reuters.com/article/topNews/idUSSP1811320080513?feedType=RSS&amp;feedName=topNews

May 13, 2008
&quot;JAIPUR, India (Reuters) - Seven bombs ripped through the crowded streets of India&#039;s western city of Jaipur on Tuesday evening, killing around 60 people in markets and outside Hindu temples.

The bombs, many strapped to bicycles, exploded within minutes of each other in Jaipur&#039;s pink walled city, a magnet for foreign tourists.&quot;</description>
		<content:encoded><![CDATA[<p>Here&#8217;s at least one proof against your assertion #1.</p>
<p><a href="http://www.reuters.com/article/topNews/idUSSP1811320080513?feedType=RSS&#038;feedName=topNews" rel="nofollow">http://www.reuters.com/article/topNews/idUSSP1811320080513?feedType=RSS&#038;feedName=topNews</a></p>
<p>May 13, 2008<br />
&#8220;JAIPUR, India (Reuters) &#8211; Seven bombs ripped through the crowded streets of India&#8217;s western city of Jaipur on Tuesday evening, killing around 60 people in markets and outside Hindu temples.</p>
<p>The bombs, many strapped to bicycles, exploded within minutes of each other in Jaipur&#8217;s pink walled city, a magnet for foreign tourists.&#8221;</p>
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		<title>By: How We Drive, the Blog of Tom Vanderbilt&#8217;s Traffic &#187; Blog Archive &#187; Bikes Not Bombs</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15700</link>
		<dc:creator>How We Drive, the Blog of Tom Vanderbilt&#8217;s Traffic &#187; Blog Archive &#187; Bikes Not Bombs</dc:creator>
		<pubDate>Tue, 11 Nov 2008 22:01:18 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15700</guid>
		<description>[...] Adams explodes the fear of &#8220;bicycle bombs.&#8221; And his point on life jackets is well taken [...]</description>
		<content:encoded><![CDATA[<p>[...] Adams explodes the fear of &#8220;bicycle bombs.&#8221; And his point on life jackets is well taken [...]</p>
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		<title>By: Chris Hutt</title>
		<link>http://www.john-adams.co.uk/2008/11/05/proving-a-negative-and-the-onus-of-proof/comment-page-1/#comment-15687</link>
		<dc:creator>Chris Hutt</dc:creator>
		<pubDate>Fri, 07 Nov 2008 22:53:20 +0000</pubDate>
		<guid isPermaLink="false">http://john-adams.co.uk/?p=179#comment-15687</guid>
		<description>At the same time as huge resources are invested in protecting us from barely credible threats such as you describe we find that resources are not available to deal with very real threats such as that of being knocked down by a motor vehicle. 

Clearly we cannot trust people who behave so irrationally with our safety and that I believe is one reason why so many cyclists routinely break the law by for example riding on pavements. We cannot expect protection from the law enforcers therefore we must make our own arrangements, if necessary in defiance of the law.</description>
		<content:encoded><![CDATA[<p>At the same time as huge resources are invested in protecting us from barely credible threats such as you describe we find that resources are not available to deal with very real threats such as that of being knocked down by a motor vehicle. </p>
<p>Clearly we cannot trust people who behave so irrationally with our safety and that I believe is one reason why so many cyclists routinely break the law by for example riding on pavements. We cannot expect protection from the law enforcers therefore we must make our own arrangements, if necessary in defiance of the law.</p>
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