Clinton, Obama clashing on health

Hillary Rodham Clinton is on the attack against her main rival, charging that Barack Obama's health plan would leave millions of Americans without medical protection while hers provides coverage to all. The assertion, flatly rejected by the Obama campaign, rests on a pivotal difference between the two Democratic presidential candidates' health proposals. Clinton says she wants the government to require all citizens to buy insurance or face a penalty. Obama relies on a mandate for children only, and instead emphasizes ways to make coverage more affordable.