This is a news segment by NBC4's reporter Joel Grover, on the Los Angeles Supervisors Board meeting who voted unanimously to hold the Department of Energy responsible for the full cleanup. Joel Grover: "Major Update: In my ongoing investigation, "LA's Nuclear Secret," I’ve documented how decades of nuclear accidents and rocket tests left thousands of acres contaminated with toxic materials in the San Fernando and Simi valleys. Today, the LA Board of Supervisors ordered a full cleanup of the radioactive and chemical contamination."