Billionaire investor Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., talks about President Barack Obama's State of the Union speech tonight and Republican presidential candidate Mitt Romney's reported 2010 income and tax rate. Recently Warren Buffett pledged to match one-for-one, all voluntary contributions made by Republican members of Congress to pay down the national debt; Pepsi will pay more than $3 million to settle federal race discrimination charges; and the CDC says for the first time since 1965, homicide has fallen off the list of the nation's top 15 causes of death.