G20 Divided Over Dollar Slide, U.S. Mum  BERLIN (Reuters) - Europe and Japan voiced strong concern  on Saturday over the slumping dollar but the world's 20 biggest  economies, nearing the end of a two-day summit, looked divided  over what if anything to do about it.
Various Factors Blamed for Childhood Obesity By RANDOLPH E. SCHMID    WASHINGTON (AP) -- A wide-ranging effort involving parents, schools, communities and government is needed to turn the tide of childhood obesity, the Institute of Medicine said Thursday...