150 years ago, President Lincoln found it necessary to hire a private investigator - Alan Pinkerton for protection.
That was the beginning of the Secret Service.
Since that time, the federal government has produced a large number of multi-letter agencies such as: FBI, CIA, INS, IRS, DEA, BATF, etc.
Now we have the " Federal Air Transportation Airport Security Service".
Can't you see them now, these 'highly trained' men and women in their black outfits with jackets saying across their backs: F. A. T. A. S. S.
The FATASS's are of course supervised by a special section of the Home Land Security Section known as:
Airport Security Service Home Office Logistics Enhancement Section or the A.S.S.H.O.L.E.S.
I feel safer already.