Political correctness is a vicious cycle. Changing words because someone thinks they're offensive is a pattern that will never stop. Here's how some of the more popular PC terms today will evolve as special interest groups take turns being insulted:
Evolution Of :" Terrorists"
Terrorists -> Insurgents -> Freedom Fighters -> Misguided Criminals -> High-Risk Offspring of Mediocre Parents -> Infrequent Law Practitioners -> Malcontents
Evolution of: "Illegal Aliens"
Illegal Aliens -> Illegal Immigrants -> Undocumented Workers -> Migrant Workers -> Guest Workers -> Imported Low Wage Workers -> Temporary U.S. citizens -> MexAmeriCanadians -> Bob
Evolution of: "Our Lord and Savior Jesus Christ"
Our Lord and Savior Jesus Christ -> Jesus Christ -> Jesus -> That Guy on the Cross -> That Person on the Cross -> That Person -> Who?