We've never seen those Sokovian terrorists before, but they were poised to shoot what looked like the Lincoln Memorial as Steve Rogers learnt of the abilities of Ulysses in CWII #1, and had to abort the mission because Ulysses would have predicted it. It seemed a little self-fulfilling, because, the rocket launching was imminent, so Ulysses would have had to predict it hours or days before, because it was going to happen. That it didn't was purely good timing. It means Ulysses predictions can be turned off if you suddenly change your mind.