Video.... can be found at:
http://teletrece.canal13.cl/
Go to about 1/3 of the way through - and you'll see it.
It happens a lot faster than I thought.
Dasher
...Bush and the first lady had gone inside the hall to pose for photos with Chilean President Ricardo Lagos and his wife, Luisa Duran. Having either heard the commotion or realizing something was amiss, Bush then broke away.He returned to the hall's entrance and reached over a crowd of people, pointing at his agent. Bush then braced himself against someone and grabbed the agent, who walked through the wall of people who had been blocking his way.
Bush adjusted his right cuff link in one swift motion, as if shaking the dust off, and headed into dinner...