Health Act Arguments Open With Obstacle From 1867  —  WASHINGTON — The Supreme Court on Monday starts three days of hearings on the constitutionality of the 2010 health care overhaul law, an epic clash that could recast the very structure of American government.

President Obama Asks Medvedev for ‘Space’ on Missile Defense — ‘After My Election I Have More Flexibility’  —  SEOUL, South Korea — At the tail end of his 90 minute meeting with Russian President Dmitri Medvedev Monday, President Obama said that he would have “more flexibility” …

NYT reporter: Santorum outburst was for cameras  —  PLAY CBS NEWS VIDEO  —  (CBS News) — When presidential hopeful Rick Santorum lost his cool with the press on Sunday, he was playing to the cameras to build support among conservative Republicans, the New York Times reporter who was on the other end …

James Cameron Completes Record-Breaking Mariana Trench Dive  —  Solo sub dive is deepest ever.  —  The explorer-filmmaker emerges from his sub after returning from Challenger Deep.  —  Ker Than  —  At noon, local time (10 p.m. ET), James Cameron's “vertical torpedo” …

Recent Developments in the Labor Market  —  My remarks today will focus on recent and prospective developments in the labor market.  We have seen some positive signs on the jobs front recently, including a pickup in monthly payroll gains and a notable decline in the unemployment rate.  That is good news.

Gov. Rick Scott: Give George Zimmerman ‘due process’  —  Florida Gov. Rick Scott said Monday that while his “heart goes out” to the family of Trayvon Martin, the neighborhood watchman who shot and killed the unarmed teenager last month deserves a “true due process.”

Lobbyists, Guns and Money  —  Florida's now-infamous Stand Your Ground law, which lets you shoot someone you consider threatening without facing arrest, let alone prosecution, sounds crazy — and it is.  And it's tempting to dismiss this law as the work of ignorant yahoos.

Cain video shows rabbit catapulted, shot  —  Former GOP presidential candidate Herman Cain released an edgy video Monday that appears to show a rabbit getting shot.  —  The video uses computer-generated effects to show a rabbit being catapulted into the air and then shot by a man with a rifle …

Can Matt Rhoades Go Big?  —  Give Romney's campaign manager credit: His careful defense and kitchen-sink offense have delivered the Republican nomination to a moderate from Massachusetts.  Now Romney and his “Terminator” need the vision thing.  —  BOSTON, Mass. — The day after Super Tuesday …

POLITICAL NOTEBOOK: Robo-call users didn't fair well with voters  —  INDIANAPOLIS - In his effort to end illegal political “robo-calls,” Indiana Attorney General Greg Zoeller tried an informal truce with the chairs of both of the state parties.  —  But a handful of candidates …

Dogs and Cats Living Together  —  It often happens that when campaign negativity reaches a fever pitch, a candidate will take a small step back from the vitriol and say something like, “My opponent is a nice guy—he's just wrong about everything.”  What they almost never do, however, is say …