Not prior military, but I've had the Feds so far up my butt with all the various alphabet soup clearances I've had in my career and it hasn't helped with these types of things. When I went through the process for TSA pre check, the extent of all the checks I've had for my clearances didn't speed up the process. It's a crock of $hit as my clearances are more thorough than any of these types of background checks.