The Oracle of Omaha stoves in the side of the argument at the heart of Ayn Rand's "Atlas Shrugged" in this New York Times op-ed Monday. Billionaire investor Warren Buffett argues that, as the US confronts the fiscal cliff, it should "forget about the rich and ultrarich going on strike and stuffing their ample funds under their mattresses if — gasp — capital gains rates and ordinary income rates are increased. The ultrarich, including me, will forever pursue investment opportunities." Buffett supports President Obama's plans to let the Bush tax cuts expire for high earners, although he suggests setting the cutoff point somewhat higher than the $250,000 income level Obama has spotlighted.