This on Fox Telly right now...said note was found on board.
Obviously a terrorist doesn't leave a note, but they need to find out who pulls these pranks and prosecute them.
It reminds me of high school days when students would call in bomb threats and they'd have to evac the whole school.
Waste of time and money.
I hope while the plane is searched they have the passengers fill out written questionaires/statements. Then do some handwriting analysis.