Unruly air passengers face up to $37,000 fine, FAA says

Unruly air travelers in the U.S. will still face hefty fines and possible criminal charges even if one major point of contention — having to wear face masks on planes — is largely no longer an issue. 

The Federal Aviation Administration is making permanent its "zero-tolerance" policy against unruly passengers, the FAA said on Wednesday. 

"Behaving dangerously on a plane will cost you; that's a promise," Billy Nolen, the agency's acting administrator, said in a statement.