Attorney General Eric Holder says the healthcare fraud crackdown the U.S. Justice Department and the Department of Health and Human Services have undertaken is beginning to pay off, the Associated Press reports. According to Holder--who spoke at a recent anti-fraud summit in Boston--more than $4 billion has been recovered in false Medicare billings from Massachusetts in just the last two years. However, about half of that was connected to a recent settlement with pharmaceutical giant Pfizer that began during the Bush administration. Article