In a secret federal law enforcement warehouse in Southern California, dozens of Ferraris, Lamborghinis and stacks of coveted sports memorabilia – like Mickey Mantle rookie cards and game-worn Kobe Bryant sneakers – offer a modest testament to the mountains of taxpayer money being illegally diverted through fraud, law enforcement officials told CBS News. By some government estimates, at least $500 billion is lost to fraud schemes each year, though other sources, including those who consult with