[dcarson]

For former Coast Guard he would probably look for ones that had been part of MSRT -- Maritime Security Response Team

The Maritime Security Response Teams are about as close to Navy SEALs as the Coast Guard gets (and many of them are trained by SEAL instructors). The MSRT includes snipers, dog handlers and explosive ordnance disposal technicians who are so highly trained they can detect and dispose of a chemical, biological or radiological weapon.

MSRT Coast Guardsmen are the counter-terrorism force within the service (as opposed to an "anti-terrorism" which is primarily defensive in nature), with missions to take down terrorist-infested ships, hit bad guys from helicopters and assault objectives like Rangers or SEALs. The force is also trained to recover high-value terrorists or free captured innocents.