After his December 2003 arrest, registered nurse Charlie Cullen was quickly dubbed "The Angel of Death" by the media. But Cullen was no mercy killer, nor was he a simple monster. He was a favorite son, husband, beloved father, best friend, and celebrated caregiver. Implicated in the deaths of as many as 300 patients, he was also perhaps the most prolific serial killer in American history. Cullen's murderous career in the world's most trusted profession...
For decades, scientists have puzzled over one of medicine's most confounding mysteries: Why doesn't our immune system recognize and fight cancer the way it does other diseases, like the common cold? As it turns out, the answer to that question can be traced to a series of tricks that cancer has developed to turn off normal immune responses-tricks that scientists have only recently discovered and learned to defeat. The result is what many are calling...