The US government expects an unsuspecting world to believe that a washed-up car salesman in Texas was tasked by a select intelligence arm of the Iranian government to fish for anyone who looked like a Mexican drug gangster and then order them a US$1.5 million hit on the Saudi ambassador in Washington - in the meantime promising them unfettered access to "tons of opium".After all, wouldn't it be useful to distract attention from all those annoying demonstrators? (sarcasm)
See also this article by Gareth Porter entitled, "FBI account of 'terror plot' suggests sting." The author provides compelling evidence and arguments that this latest "terror plot" was another contrived sting operation designed to scare the American public and possibly to justify war actions.
And, if you still haven't had enough, read Glenn Greenwald's commentary entitled, 'The “very scary” Iranian Terror plot'. He captures the spirit of Orwell when he writes, "...after all, U.S. government accusations = Truth."