Dave Foreman

Foreman faces federal felony charges for allegedly plotting to blow up power lines leading to a nuclear power plant. His organization Earth First! has been praised and vilified for its use of "monkey wrenching" -- acts of sabotage and civil disobedience against organizations that are hurting the earth. Foreman, who has since distanced himself from the group, has a new book, called "Confessions of an Eco-Warrior."