A common vitamin supplement appears to dramatically reduce a woman's risk of having a child with autism.
A study of more than 85,000 women in Norway found that those who started taking folic acid before getting pregnant were about 40 percent less likely to have a child who developed the disorder, researchers reported in the Journal of the American Medical Association.
North Korea's latest nuclear weapons test is much more powerful than the previous two, according to estimates made by instruments that measure seismic waves from the blast. It's about the size of the bomb that devastated Hiroshima in World War II.
But it's not so easy to verify the claim that the nuclear explosive has also been miniaturized. That's a critical claim because a small warhead would be essential if the rogue regime chose to threaten the United States with a nuclear-tipped missile.
Big bombs are easier to make, but they aren't all that useful as a threat.
New York Times reporter Scott Shane and colleague Jo Becker reported last year that the Obama administration has a list of terrorists targeted for drone attacks, and that the president personally approves such strikes.
The administration has been trying to keep details of its drone program under wraps, arguing that to make it public could threaten national security. Shane has reported numerous such stories.
It's Tuesday, and time to read from your comments. Last week, we asked you tell us what happened after you drew a firearm. One caller, Alexander, said he shot a karate expert trying break into his house after wrestling over an assault rifle.