The federal government and more than half the states announced plans Thursday to go after the people behind a new investment scam, CBS News Corresponent Wyatt Andrews reports—a con that has already cheated thousands of people, many of them elderly, out of hundreds of millions of dollars. Barbara Mahoney's trusted financial adviser of 15 years sold her corporate promissory notes which, he swore, would deliver 11-1/4 percent interest, guaranteed. Mahoney lost $158, 000—every penny of her retirement nest... read full review »