Israelis develop cancer 'cluster bomb'

Israeli medical researchers say they have developed a new technique for blasting cancer tumors from the inside out which reduces the risk of the disease returning after treatment. Tel Aviv University Professors Yona Keisari and Itzhak Kelson are about to start clinical trials of a pin-sized radioactive implant that beams short-range alpha radiation from within the tumor. The university said that the process takes about 10 days and leaves behind only non-radioactive and non-toxic amounts of lead.