http://adf.ly/1SZdI2, http://adf.ly/1XIsTW, http://www.ctvviet.com, http://www.nhac24.com <br />As the U.S. government takes new steps to address an exploding epidemic of prescription drug and heroin abuse, we're reporting on a summit in which President Obama and Dr. Gupta discussed the issue. The debate over minimum wage in California is detailed, and scientists' strategies for dealing with erupting volcanoes is examined, as a mountain spews an ash plume over Alaska.
