These prescription drugs have legitimate medical uses, but there's also evidence that they carry serious risks. And those risks were underestimated or undetected when the FDA approved them.

Internet phone service was the first technology that worked after Hurricane Katrina. But Internet phone service won't work in a power outage and neither will a cordless phone.

The FDA is short-staffed and has tight deadlines to approve new drugs. And then once a drug is on the market, the FDA has only limited power to monitor it for safety.