Workers assemble solar panels at the now-bankrupt Suntech in the eastern Chinese city of Wuxi. Overproduction in the country has helped lower the cost of solar panels. Peter Parks /AFP/Getty Images hide caption

itoggle caption Peter Parks /AFP/Getty Images

Capt. Paul Carey of the Maryland Natural Resources police shows a side-scan sonar being used in a search on the Chesapeake Bay in 2006. In recent years, the cost of such equipment has come down, allowing more local law enforcement departments to purchase it. Chris Gardener/AP hide caption

itoggle caption Chris Gardener/AP

Former Liberian President Charles Taylor waits for the start of his appeal judgment at the Special Court for Sierra Leone in Leidschendam, near The Hague, Netherlands, on Thursday. Koen van Weel/Associated Press hide caption

itoggle caption Koen van Weel/Associated Press