The attorney for the suspect said it was a misunderstanding, saying his client thought he was getting a cheap airline ticket, not a fake one.
Thieves broke into the grounds of Windsor Castle, King Charles' residence west of London, and stole two vehicles from royal land, police said, in a major breach of security.
Iranian hackers sought unsuccessfully to interest President Joe Biden's campaign in information stolen from rival Donald Trump's campaign, federal agencies said.
Security remains a top priority at the Democratic National Convention after a fence outside the United Center was breached Monday.
Protesters breached a fence line outside the United Center Monday evening, on the first day of the Democratic National Convention.
The unidentified passenger was escorted off the plane and according to the TSA, there was no security violation since he had a valid ID and boarding pass for a different flight that day.