Back in May after it made an unexpected comeback, some started calling the GOP's Obamacare replacement plan "Zombie Trumpcare". This week, another version is still under discussion. How often can this bill be "brought back from the dead"? While we're discussing bringing things back to life: smallpox was eradicated 30 years ago, but scientists have made a close relative of the killer virus inside a Canadian lab. Read on for these stories, and more.