Tom Clancy's Splinter Cell

"In response to the growing use of sophisticated digital encryption to conceal potential threats to the United States, the National Security Agency has ushered forth the new dawn of intelligence gathering techniques. The top-secret initiative is dubbed Third Echelon.Its existence denied by the U.S. government, Third Echelon deploys a lone field operative. He is sharp, invisible, and deadly. And he has the right to spy, steal, destroy, and assasinate to protect American freedoms."