"During the course of authorized searches, traffic stops, and other contacts, law enforcement officers should be alert to the potential terrorist use of almanacs for pre-operational activities. Indicators of the use of almanacs for this purpose may include suspicious notations concerning high-profile locations such as tall buildings or landmarks..."

It seems pretty clear that the USA is not a sensible place to go the kind of tourist who likes visiting "high-profile locations such as tall buildings or landmarks".

I wonder if this will catch on elsewhere, and Americans who ask the way to the Tower of London or the Eiffel Tower will find themselves banged up on suspicion?