Two people did not try to attack the NSA yesterday. Three people met in a hotel room overnight, two of them stole the third's car in the morning, and as they were escaping they took a wrong turn into the NSA. The driver's decision or panic to ram the police car was one more bad decision; I doubt they even knew they were taking the NSA exit, and I seriously doubt that attacking the NSA was their premeditated plan. But it's early days.