[LarryM]

If that car had been packed with explosives, it could have brought down the civic center. Security procedures definitely need to be reviewed. Roadblocks need to have spikes to puncture tires long before the car can get to the building.

[Poohbah]

If that car had been packed with explosives, it could have brought down the civic center.

If by "explosives" you mean "tactical nuclear weapon," true. Otherwise, probably not true.

Security procedures definitely need to be reviewed.

Agreed.

Roadblocks need to have spikes to puncture tires long before the car can get to the building.

I don't know if those will actually stop the damn car--if someone's suicidally insane, they can drive on the rims.