President Barack Obama and Pope Francis stand at attention during the playing of the national anthems during a state arrival ceremony for the pope on the South Lawn of the White House Wednesday.
Pablo Martinez Monsivais/AP
The Margerie Glacier, one of many glaciers that make up Alaska's Glacier Bay National Park. President Obama will visit Alaska Monday to highlight the affects of climate change.
President Obama says Iran's "nuclear breakout" time will be extended from the current two or three months to at least a year under the nuclear agreement. But he acknowledges that some restrictions will fall away after 15 years and the breakout time would again shrink.