President Obama is expected to arrive in Manhattan today around 4:30 p.m. Lock up your bicycles! Er, wait, DON'T lock them—at least not anywhere near the St. Regis hotel on Fifth Avenue, where the president will appear at a Democratic fundraiser. You'll also want to avoid locking your bike up anywhere along his motorcade route. Unfortunately, we're not exactly sure where that's going to be, so just look for the cops delicately defusing dangerous bike bombs and heaving them into the back of a truck.