The FBI has confronted many threats in its 100-year history, from busting gangsters in the '20s and '30s to hunting for Nazi saboteurs during World War II. But its newest recruits were in college or just out on Sept. 11, 2001, and they're being trained to tackle a new enemy....

Though recruits still put in their hours at the firing range, the FBI is now focusing — some critics would say struggling — to recruit more candidates with specialized skills, including second or third languages to help deal with foreign threats.

But some civil liberties groups say they're concerned the bureau will rely on racial profiling. When FOX News visited Quantico, both arrest and interrogation scenarios included civilians playing roles as Muslim extremists.

One arrest scenario shown to FOX News was built around a Muslim bomb-making cell. Academy officials said it was to ensure that recruits are comfortable with a broad range of people. [Link]