NATIONAL NEWS

KENNETH J. COOPER: Obama as change agent: Measuring his impact

Pulitzer Prize-winning journalist Kenneth J. Cooper explores the many ways that the Obama presidency can transform American culture. More »

New CEO: AARP is working on behalf of all ages

LAS VEGAS - AARP has long been seen as the domain of the aged. But its new CEO says the group?s central issue of health care reform makes it an advocate for every age group. More »

Convicted of killing his children, man seeks truth

ARCADIA, Fla. - Seven children poisoned by insecticide. Their father charged with murder. More »

Philly chemist uses musical formula to teach science

PHILADELPHIA - Grand Hank, the self-proclaimed world heavyweight champion of science, is donning his funky green safety goggles, bouncing from foot to foot and nodding as his assistant explains why it's important to keep safe in the lab. More »