Oh sorry, it was just two British tourists on holiday. A few weeks before getting on the plane, Leigh Van Bryan joked on Twitter about digging up Marilyn Monroe's grave and asked a friend to meet up "for a quick gossip/prep before I go and destroy America." Even though this means he planned to party, it apparently got Van Bryan and his friend Emily Bunting stopped by Homeland Security at Los Angeles International Airport. They were questioned and detained, then returned to England.
Now, it's a one-source story in Britain's The Sun and cries out for some, uh, independent input other than theirs and The Sun's. But still, If even half-true, and the travelers don't have something else on their records to get them blocked from entering the United States, it's ridiculous.
Thumbnail from photo on The Sun website