[Indiana Jones]

As far as the white truck/van goes, besides being
a decoy or distraction, it could be the 'verifier' vehicle...the sniper makes the
shot and the 'verifiers'(in the van) document the carnage
with pictures/video. Digital cameras have taken
vigilant film developers out of the loop and
give instant gratification to the perps (make that
EVIL DOERS).

Thoughts?

[John_11_25]

They also helped Al Queda put out training videos.

Do not rule out terrorism.

I remeber reading a while back that Al Queda were joinging forces with right wing groups in the US.

If they did then this is a group of right wing nuts distracting law enforcement from the real target, as explosives are moved into place in Washington DC.

Remember they came back for the WTC after failing the first time to bring it down.

On September the 11th they wanted the White House and Congress. So maybe they have come back to do just that.

They also tried to blow up a ship in Yemen and it did not work the first time, so they tried again with The Cole.

The shoe bomber tried to get on the plane and was not allowed, he was then informed to try again.

Hopefully history is not repeating itself.

[Cachelot]

As far as the white truck/van goes, besides being a decoy or distraction, it could be the 'verifier' vehicle...the sniper makes the shot and the 'verifiers'(in the van) document

Very possible. If the theory that these are "training/qualification runs" is correct, it's even more possible.