Employing the Silver Samurai, Viper attempted to coerce Team America into stealing the cavourite crystal, and then battled the New Mutants. In one of her many terrorist acts, she would try to gain control of the snake-themed organization called the Serpent Society, with Slither, Copperhead, Puff Adder, Fer-De-Lance, and Black Racer as her operatives. The latter four operatives infiltrated the Serpent Society in an attempt to take it over. Viper dispatched Cobra, Boomslang, and Copperhead to poison Washington D.C.'s water supply with a snake mutagen. Viper terrorized the White House and the President, and battled Captain America. She attempted to assassinate the organization's former leader Sidewinder, but she was betrayed by Cobra and arrested by Captain America.[volume & issue needed] Vip