Science & Health

Saying "I never could have predicted either the low points or the high points," former House Speaker Newt Gingrich just officially suspended his bid for the 2012 Republican presidential nomination.

He's been leading up to this for more than a week. Tuesday, he posted a video to say goodbye to his supporters.

Update at 4:30 p.m. ET. Romney On Gingrich:

Fiction and nonfiction releases from Dan Brown, Diane Keaton, Fareed Zakaria, Annie Jacobsen and Mitchell Zuckoff.

Copyright 2012 National Public Radio. To see more, visit http://www.npr.org/.

Millions of people around the world are living with HIV, thanks to drug regimens that suppress the virus. Now there's a new push to eliminate HIV from patients' bodies altogether. That would be a true cure.

We're not there yet. But a report in Science Translational Medicine is an encouraging signpost that scientists may be headed in the right direction.

Daniel Chong, a California college senior who "was left alone in a federal holding cell for five days with no food or water," now at least has an apology from the Drug Enforcement Adminstration.

That likely won't make up for having to drink his urine to survive, as Chong spoke of to reporters on Tuesday.

Mitt Romney, the presumed GOP presidential candidate, continues to try out potential running mates, though most deny any interest in the job. Sen. Marco Rubio, Rep. Paul Ryan, Sen. Rob Portman, Gov. Chris Christie and others have all made high-profile comments in recent days.