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The administration is pledging $100 million toward a project to stop HIV infections once and for all. There's growing optimism among scientists that it may be possible to get patients' immune systems to control HIV without drugs, or even to eliminate the virus from the cells of infected people someday.

One official predicted that anyone involved in opening a box containing radioactive cobalt-60 could be in grave danger of dying within days.

Democratic state Sen. Mark Herring leads Republican state Sen. Mark Obenshain by a mere 117 votes in the Virginia attorney general's election. If it remains that close after a recount, the race will rank as one of the closest statewide contests in modern history.

Each of the 30 states to consider constitutional amendments that would outlaw such unions has adopted the ban. That may change on Election Day, when voters in Maryland, Washington, Maine and Minnesota make their decision on whether to recognize gay marriage.

In the closing days of the campaign, some serious money is coming in behind the controversial GOP Senate nominee, and one recent poll showed his race against Claire McCaskill is a dead heat. But most observers think Akin's already done his campaign too much damage.

As one scientist puts it, Bayes' theorem, developed by a Presbyterian minister, isn't clouded by emotion, so it can be revelatory — and may be the best hope of finding Malaysian Airlines Flight 370.

Taylor armed and assisted fighters in neighboring Sierra Leone in exchange for "blood diamonds." During a brutal war that ended 10 years ago, about 50,000 people died in Sierra Leone.

Children with disabilities — estimated at more than 1 million — are shunned in Kenya as curses from God, shut away and largely neglected. Some nonprofits are helping these children and their families. But such programs are just a drop in the ocean given Kenya's paucity of basic human services.

Pakistan is returning to an old and dreaded practice: the formation of secret military courts to try people accused of threatening the county's security.

Juniper Russo wants what is best for her daughter, Vivian, and she sometimes questions mainstream medicine. But after three years of soul-searching, she decided vaccination was best.