A helicopter crashed in the area today, if I recall.
Perhaps TWA flight 800 style?
Jesse Jazzmo says you can take down an airliner with a bushmaster .223
I think you can blow up railroad tracks with a Barrett .50 BMG /s
It's off topic but a shoulder launched SA-7 would have homed in on an engine and most likely not have downed Flight 800. The airliner would have been almost out of range when it was "hit." Also, SA-7s and a lot of other missiles burn for only one or two seconds so there would be no "fireball" streaking towards the plane.