An offshoot of Occupy Wall Street is holding a telethon this week for its campaign to purchase the debt of struggling U.S. households. According to its website, the group RollingJubilee.org has already raised more than $100,000 toward its effort to buy up consumer debt at random, often for pennies on the dollar, and then cancel it so that borrowers do not have to repay. A sold-out benefit concert is scheduled for Thursday in New York City.