Hmmmm....this gives me an idea
I don't really understand this facebook stuff, but would it not be a wizard jape to work out a way of getting anti-US and anti-Trump posts onto the timeline of certain unpleasant UK politicians. Farage, Johnson etc.? Or even more fun with the obscure back-bench nonentities. Then tip off Homeland Security next time they're due to visit the Land of the Free (TM)