We have Monday’s top news…What is happening in Pakistan that has U.S. officials worried about nuclear weapons falling into the hands of radicals? Wil recent violence in Iraq change the U.S. withdrawal schedule? Who is President Obama targeting with proposed changes in the tax code? What is he not telling us about these alleged tax cheats? What clues is the White House giving us about Obama’s upcoming Supreme Court pick? What advice is Obama getting from Republicans in the U.S. Senate? We have the answers as we bring you the biggest stories for Monday, May 4, 2009.