Some Carry-On Mistakes Almost Make Sense

Like a Swiss Army knife.   I lost one thst I thought was okay in a carry-on.  But a flash-bang grenade?  4/9/25 WTAE:

"PITTSBURGH —

A federal grand jury indicted a man who officials said was found with a flashbang grenade in his luggage as he passed through the security checkpoint at Pittsburgh International Airport last year."