In response to recent infections and deaths from tainted medical scopes, U.S. lawmakers are wrestling with how to keep other dangerous devices from harming patients.

After Martin Shkreli raised the price of anti-parasitic drug Daraprim more than 50-foldto $750 a pill last year, he said he wasn’t alone in taking big price hikes. As it turns out, the former drug executive was right. A survey of about 3,000 brand-name prescription drugs found that prices more than doubled for 60 and at least quadrupled for 20 since December 2014.

Open enrollment for 2016 ends Sunday for those who buy health plans from the private market or health insurance exchanges. But if you don’t act by the deadline, are you completely out of luck?

The Internal Revenue Service is warning consumers about tax scams involving the Affordable Care Act and penalties imposed under the law on people who go without health insurance.

Undercutting rivals on price is an unusual and stealthily brilliant strategy from Merck. It will likely burnish the company's image at a time when politicians are aggressively attacking high drug prices. It could possibly reshape the way drugs are priced. And who doesn't like a good old-fashioned price war?

After the open enrollment period ends on Sunday for buying coverage on the health insurance marketplaces, people can generally sign up for or switch marketplace plans only if they have certain major life changes, such as losing their on-the-job coverage or getting married. Following insurance industry criticism, last week the federal government said it will scrutinize people’s applications for such “special enrollment periods” more closely, including one of the most commonly cited reasons — relocating to a new state.