Corey Flintoff

One Siberian city is tackling the problem of drug-resistant tuberculosis with a health program affectionately named for an earlier Russian innovation. In the modern Sputnik program, teams of nurses travel around the sprawling city of Tomsk, finding and treating the TB patients who are the hardest to reach.

Russia has struggled for decades to control deadly forms of tuberculosis among inmates. A clinic inside a Siberian prison is finally having some success against the disease by teaching inmates to care for themselves — and their families.

The challenges include mild winter weather, high costs and residents who have lost their homes. But Russia says it will put on a great show when the 2014 Winter Olympics come to Sochi next February.

The United States and Russia have been at odds over human rights, Syria and even the adoption of Russian orphans by American families. But former U.S. envoys who met with officials in Moscow this week say they found "a willingness to explore ideas" and urged cooperation on economic and security issues.

Less than a year after they separated, Sudan and South Sudan are once again fighting. Both countries depend on oil revenue. A full-scale war could devastate their economies and trigger a humanitarian crisis.

Less than a year after they separated, Sudan and South Sudan are once again fighting. Both countries depend on oil revenue. A full-scale war could devastate their economies and trigger a humanitarian crisis.

In Libya, refugees are streaming out of Sirte, the last major town still in the hands of forces loyal to ousted dictator Moammar Gadhafi. Cut off from the rest of the country, without electricity, many knew nothing of recent rebel advances, including the fall of the capital, Tripoli.

In Libya, refugees are streaming out of Sirte, the last major town still in the hands of forces loyal to ousted dictator Moammar Gadhafi. Cut off from the rest of the country, without electricity, many knew nothing of recent rebel advances, including the fall of the capital, Tripoli.

Gharyan, just 55 miles south of Tripoli, is a prime objective of rebels in the country's western mountains. The government says the city is firmly on the side of Libyan leader Moammar Gadhafi, but many residents have reportedly left, and the real extent of government support is unclear.

Ash from an Icelandic volcano is causing big and costly disruptions in Europe but, so far, it's nothing compared with the havoc caused by the country's economic eruption a year and a half ago. How can a remote island in the North Atlantic, with only about 320,000 people, be the source of so much damage?