Good move, but if he/they are terrorists with Middle Easterm Moose-slum connections, I'd bet on a very loud noise and a big flash should anyone approach them in an effort to apprehend them. Mind you don't trigger such a surprise with a intended collision, and remember that it's quite possible that they could well be in the larger vehicle, likely larger than anything you may have available to ram them with.
Still, if they are carrying an explosive suicide device with them in the event of impending capture, it would be particularly neat if someone could put a Raufoos .50 into their demo package, whether carried in the truck or worn. There may not be much left of the perpetrators for interrogation or souvieners, however.
Don't forget your earmuffs! Could be noisy!
[Any bets that their death or capture will trigger the *next phase* of the attacks on the U.S.? How many shopping days 'till Christmas....]
-archy-/- -archy-/-
Possibility is high that the shooters E&E route has security on it to preclude such an attempt to capture. All what ifs aside I think it is goint to be futile to kill this guy as one more islamikazi will step up and take his place.
It is now an established fact that this method is NLT a car bomb in Israel for it's fear factor and disruption of day to day business as usual on the American Populace in the DC Metro Area........coming to a neighborhood near you soon no doubt......
Monkey See Monkey Do sort of thang !.
Ditto on the Raufaus HEI in the Barrett idea !!............:o) Stay Safe !