Snitches, rats, finks, and narcs – criminal informants may not be popular among their peers, but are crucial to the work of law enforcement. Today, the risks investigators face when it uses criminals to catch other criminals. Then, 2012 was a rough year for comedian Tig Notaro. She suffered a serious intestinal infection, the death of her mother, a major break-up, and the kicker, she was diagnosed with cancer. She explains why she chose to announce her cancer diagnosis to a roomful of strangers during a stand-up set.