President Obama, joined by Homeland Security Secretary Jeh Johnson (left), delivers remarks at the National Cybersecurity and Communications Integration Center on Jan. 13 in Arlington, Va. Obama discussed efforts to improve the government's ability to collaborate with industry to combat cyber threats.
Kristoffer Tripplaar-Pool/Getty Images
(Left) Nelson Rockefeller examines a painting at New York's Museum of Modern Art in 1939. (Right) Diego Rivera, seen here in 1933, works on a panel of his mural in the lobby of Rockefeller Center.
(Left) Bettmann/CORBIS. (Right) AP
Quinault Indian Nation President Fawn Sharp stands on the docks as tribal crabbers unload their catch. The tribe has vowed to fight the oil train-to-ship terminals proposed for Grays Harbor.
Drilling rigs dot the landscape near Calumet, Okla., in April 2013. Oklahoma's economy blossomed during the domestic fracking boom, but as the price of crude oil drops, that could change.