People listen to the National Anthem before US President Barack Obama speaks about tax reform at Florida Atlantic University April 10, 2012 in Boca Raton, Florida. Obama spoke about the Buffet Rule, named for billionaire Warren Buffet, proposed tax reform legislation intended to set a minimum tax for millionaires, which will face a procedural vote next week in the US Senate. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)