Truth is stranger than fiction. From
https://www.wired.com/2007/11/httpblogsabcnew/ (the cited Congressional Quarterly article now seems offline):
"The FBI sifted through customer data collected by San Francisco-area grocery stores in 2005 and 2006, hoping that sales records of Middle Eastern food would lead to Iranian terrorists," CQ's Jeff Stein reports.
"The idea was that a spike in, say, falafel sales, combined with other data, would lead to Iranian secret agents in the south San Francisco-San Jose area.
"The brainchild of top FBI counterterrorism officials Phil Mudd and Willie T. Hulon, according to well-informed sources, the project didn’t last long. It was torpedoed by the head of the FBI’s criminal investigations division, Michael A. Mason, who argued that putting somebody on a terrorist list for what they ate was ridiculous — and possibly illegal."
So we escaped that time. What about now? Don't forget that thanks to the Supreme Court, the President is now immune from prosecution.