Women are isolating themselves from their children for weeks after undergoing treatment with the cancer-fighting drug Iodine-131. The mothers say that because objects they touch may become radioactive, they fear they could be giving their children a secondhand radiation exposure—and putting them at risk for cancer. Iodine-131 has proven so effective against thyroid cancer (the five-year survival rate after treatment is now 97 percent) that researchers worldwide are using it to treat lymphoma and cancers of the liver, colon, and prostate. But to mothers, the success comes at a price. As one mother told USA TODAY, "How can you have any peace of mind when you know you're potentially putting your family at risk? I'd rather live in a box under a bridge than come home to my small children." For more info, click here.