Ida Christian, who suffers from dementia, gets help from her granddaughter, Yolanda Hunter (left), in blowing out the candles on her birthday cake. Yolanda quit her lucrative job to become Ida's full-time caregiver.
Oil field workers drill into the Gypsum Hills near Medicine Lodge, Kan. Hydraulic fracturing, or "fracking," to coax out oil and gas has led to a natural gas boom that the U.S. market is having trouble absorbing.
President Obama signs the economic stimulus bill in February 2009, as Vice President Biden looks on. Experts disagree over the impact of the administration's economic policies on the recession.
Afghan Army soldiers stand during a security transition ceremony in Mazar-e-Sharif, north of Kabul, Afghanistan, on July 23, 2011. The Afghan government officially took control of security in the capital of the peaceful northern province of Balkh on July 23, as part of an effort to begin handing over all security responsibilities to Afghan forces by 2014.