You will need to fluently speak a relevant foreign language to be sure of a job, but those Federal jobs pay well compared to conventional law enforcement positions. Retirement ain't bad either. Private security companies(Blackwater type) who will pay a living wage or better, require government trained, experienced people who have been there and done that already. Security personnel (Wackenhut), like the ones at the nuclear power plants, don't make much and individual thought and initiative is neither required nor desired. I know several.
Stay single in that field. If you aren't, you will be. Good luck.
Mac.