Radio talk show host Rush Limbaugh may have violated state money-laundering laws in the way he handled the money he used to buy the prescription drugs to which he was addicted, law enforcement officials in Florida and New York told ABCNEWS. A conviction on such charges in Florida would be a first-degree felony, punishable by up to 30 years in prison. Limbaugh returned to the airwaves this week after five weeks of rehabilitation for his admitted addiction to prescription painkillers. His lawyer denied today there was any foundation for a money-laundering prosecution. "There's no basis for these charges. He has...