President Barack Obama locked up enough Republican votes Tuesday to ratify a new arms control treaty with Russia that would cap nuclear warheads for both former Cold War foes and restart on-site weapons inspections.
Eleven Senate Republicans joined Democrats in a 67-28 proxy vote to wind up the debate and hold a final tally on Wednesday. They broke ranks with the Senate's top two Republicans and were poised to give Obama a victory on his top foreign policy priority.
The wider use of a cheap blood test could help cut the number of new HIV infections by more than 80,000 in the United States over 20 years.
The test only costs a few dollars. But the researchers say screening everyone at least once and people more likely to get the disease, such as gay men, every year would be a cost-effective. Still, even that considerable effort would cut the expected 1.23 million new HIV infections over the next couple decades by a modest 7 percent.
For the parents who have been wondering, "Why is it that my daughter plays with dolls and my son just wants a toy fire truck?" scientists reported this week that they've seen something similar among chimpanzees in a forest in Uganda. The scientists say they've observed young, female chimps playing with sticks and logs as though they were dolls.