This is area in development and it makes many people concerned. Are science methods and software mature enough to do it properly and not to hurt anyone? It seems as experiment, but actually it is in use and can cause problems for you if you traveling to USA. Obviously, increase of terrorist threats forces governments to introduce various technologies, even some of them are not accurate enough.
You can check here if you are on “No Fly List”. This system uses Soundex system developed in 1918. Soundex removes vowels from names and applies numerical values to remaining consonants. Names are matched according to those resulting numerical values.
Article about difficulties to profile terrorists is here.