Quote:
	
	
		| Originally posted by skier "the United States Government has constructed a genetically engineered  fungus that destroys marijuana plants to help the war against drugs. It is extremely virulent- it can destroy a whole crop in under a week. It is currently under legislation and expected to pass in the next few weeks."
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 That's a good start... perhaps a nanotechnology angle should be added?  
New tech that no one understands always helps a rumor spread.  We spread a great one back around 1988 regarding a guy who burnt his cornea because the laser in his Sony Discman malfunctioned.