The son-in-law was arrested upon landing in Florida. He was placed in handcuffs, interrogated and placed in a cell for 11 hours before being put on a flight back to Europe, the paper said.

The FBI contacted Swedish intelligence agency Saepo, which discovered that the email tipping off the FBI had been sent from the father-in-law's computer.

The father-in-law has been charged with aggravated libel.

He has admitted sending the email, but said he didn't think "the authorities were so stupid that they would believe anything. But apparently they are."

He said he "couldn't help the US authorities' paranoid reaction".

HERE IS AN IDEA ;

Bush is terrorist and Obama is really Bin laden, minus the beard.
I can see the reactions now.

FBI will have anyone you call a terrorist detained

if that's true, then I know who my first candidate would be...