Are Innocent Citizens at Risk of Police Seizure of Their Cash, Cars and Homes?…

The Justice Department secretly subpoenaed phone records of Associated Press journalists during two months in 2012. The AP was notified that records had been secretly seized for more than 20 of its phone lines, possibly to track government leaks of…

Medical experiments on chimpanzees can be invasive, involving injections, blood samples and liver biopsies. But some say it's the only way to advance medicine. Miles O'Brien's report explores whether there are ever instances in which the scientific value of research…

Sen. Edward Kennedy was diagnosed with a malignant brain tumor, his doctors said Tuesday. Malignant gliomas, like Kennedy's, are the most common type of adult brain cancers, inflicting some 9,000 Americans a year. A medical expert discusses treatment for brain…