I'm gonna jump in with Eagl and say the OP is being pretty ignorant.
We've got TCAS on the T-6B, and even with a TCAS hit, and a controller heads up, I'd say at least 25% of the time I can never even find the traffic visually, I just have to trust the two outside sources to steer clear. Also, immediately blaming the F-16 is pretty ridiculous as we don't know where the Cessna was. Just the other day we had a local Cessna hanging out over our return point by NASWF. He was JUST outside controlled airspace, no transponder (ATC didn't get him) and circling over the spot where a T-6B passes by at 240kts at least every 3 minutes...