As the disaster in Japan continues to worsen, we take a look at the impact of radiation and nuclear energy on people's health. We talk to Glenn Alcalay about the history of U.S. nuclear testing on the Marshall Islands, and we also talk to Dr. Dale Dewar of Physicians for Global Survival about nuclear energy in Canada and why Physicians for Global Survival have taken a stand against nuclear proliferation for the good of all humanity.

Music by Peter Tosh, Joni Mitchell, Buffy St. Marie, K'Naan and Ani Difranco.