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Protesters demonstrate against the Trans-Pacific Partnership trade deal in front of the prime minister's official residence in Tokyo last year. Yoshikazu Tsuno/AFP/Getty Images hide caption
The National Security Agency campus in Fort Meade, Md. Patrick Semansky/AP hide caption
The federal government hopes to reverse America's declining honeybee and monarch butterfly populations. Andy Duback/AP hide caption
President Barack Obama might have just gotten his own Twitter account, but he's been tweeting for years, such as during this "Twitter Town Hall" in 2011. Charles Dharapak/AP hide caption
An image from a report by the National Capital Planning Commission of the planned temporary improvements to the White House perimeter fence. National Capital Planning Commission hide caption
Former President Bill Clinton wants to keep his foundation running, even if his wife becomes president and "whether I'm running it or not." AP hide caption
Visitors to the Smithsonian's National Air and Space Museum wait for it to reopen after widespread power outages caused many of the buildings along the National Mall in Washington to shut down temporarily on Tuesday. Andrew Harnik/AP hide caption
Prince Charles, Prince of Wales smiles with President Obama at the White House Thursday. Chris Jackson/Getty Images hide caption
The Secret Service released this photo of a "quad copter" that crashed on the White House grounds Jan. 26. Secret Service hide caption
A member of the Secret Service's uniformed division stands by a fence in front of the White House. Brendan Smialowski/AFP/Getty Images hide caption
The Secret Service has confirmed that an envelope sent to the White House tested positive for cyanide. Further testing was underway. Jonathan Ernst/Reuters/Landov hide caption