It’s the moolah.
Everyone knows how much money Michelle likes to spend on her little jaunts outside the White House. The apple doesn’t fall too far from the tree, eh? It’s not that Americans are warned against all travel to Mexico. It’s the 25 Secret Service agents and 3 armored vehicles that accompanied the young Obama. No wonder the other parents let their kids go on a “school trip.” They had security provided by yokels like you and me.