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		<id>https://www.explainxkcd.com/wiki/index.php?title=3131:_Cesium&amp;diff=384621</id>
		<title>3131: Cesium</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3131:_Cesium&amp;diff=384621"/>
				<updated>2025-08-20T17:01:50Z</updated>
		
		<summary type="html">&lt;p&gt;2607:FB91:1BE5:F4F4:592B:23F:D121:4FC8: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3131&lt;br /&gt;
| date      = August 20, 2025&lt;br /&gt;
| title     = Cesium&lt;br /&gt;
| image     = cesium_2x.png&lt;br /&gt;
| imagesize = 588x298px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Someday I hope to find a way to mess up a recipe so badly that it draws the attention of the International Air Transport Association, the International Mathematical Olympiad, or the NSA.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created by a disastrous recipe-creating bot. Don't remove this notice too soon.}}&lt;br /&gt;
{{w|Cesium-137}} is a radioactive {{w|isotope}} of {{w|Caesium|cesium (a.k.a &amp;quot;caesium&amp;quot;)}}. This comic was posted the day after the {{w|FDA}} posted an [https://www.fda.gov/food/alerts-advisories-safety-information/fda-advises-public-not-eat-sell-or-serve-certain-imported-frozen-shrimp-indonesian-firm advisory] about frozen shrimp sourced from an Indonesian firm, because they were contaminated with radiation during shipment.&lt;br /&gt;
&lt;br /&gt;
Rather than being concerned about the potential health impacts, [[Megan]] and [[Cueball]] are curious about the technical details that led to this contamination. Cs-137 is normally a by-product of nuclear reactors, which are not normally used in food processing.{{cn}} Cueball and Megan cannot fathom how one could unintentionally contaminate shrimp with radioactive waste, and Cueball comments that his biggest culinary screw-up only attracted the attention of a relatively small organization, that being his local fire department, likely because he set something on fire while cooking. A real-life example of seemingly-random contamination by Cs-137 was the {{w|Goiânia accident}} in Brazil.&lt;br /&gt;
&lt;br /&gt;
The title text says that one of Cueball's (or possibly Randall's) ambitions is to draw the attention of various organisations with a recepie he has butchered, either by accident or more likely, in this case, on purpose. Needless to say, it is difficult to imagine in a cooking error that could be in any way brought to the attention of IATA.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Megan, on the left, looks at a news story on her phone next to Cueball.]&lt;br /&gt;
&lt;br /&gt;
:Megan: There's a recall of frozen shrimp contaminated with cesium-137.&lt;br /&gt;
:Cueball: With ''what?''&lt;br /&gt;
:Megan: I know, right?&lt;br /&gt;
:Cueball: ''How!?''&lt;br /&gt;
&lt;br /&gt;
:[Megan puts her phone away and shrugs.]&lt;br /&gt;
:Megan: No idea, but I bet it involved some expensive equipment. Those cesium sources aren't cheap.&lt;br /&gt;
:Cueball: Man.&lt;br /&gt;
&lt;br /&gt;
:[Megan stops shrugging, with Cueball in thought.]&lt;br /&gt;
:Megan: It's honestly a little inspiring to realize that it's always possible to screw up in a totally new way.&lt;br /&gt;
:Cueball: Yeah, the biggest agency whose attention '''''I've''''' drawn by messing up a recipe is the local fire department.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>2607:FB91:1BE5:F4F4:592B:23F:D121:4FC8</name></author>	</entry>

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