Bailed-out AIG sues U.S. for $30.2M (CBS/AP) NEW YORK - American International Group (AIG), the insurance giant that received a massive federal bailout in 2008, says it wants some tax money back - from 1991. AIG is suing in Federal Claims Court in Washington for $30.2 million. It says that's how much interest is owed from an overpayment 21 years ago. The company says it underpaid its taxes in the late 1990s. But it claims it overpaid in 1991, so the interest owed in the various tax disputes works out in AIG's favor. AIG says it filed the lawsuit on Thursday because the statute of limitations on its claims was about to run out. The Internal Revenue Service is run by the U.S. Treasury Department, which also owns about 70 percent of AIG common stock. AIG also still owes $17.5 billion to the Federal Reserve Bank of New York. AIG's $182.5 billion bailout was the largest of the financial crisis. AIG shares fell 40 cents, or 1.3 percent, to close at $31.57. The stock, which dropped to single digits during the financial crisis, has traded between $19.18 and $35.05 in the past 52 weeks. Bailout watchdogs condemn AIG tax break Fed sells toxic AIG assets to European banks Why the feds' Countrywide settlement settles nothing