Protesters' Plans Present Challenges for Inauguration Security

Preparations and security operations are well underway a month before Donald Trump's inauguration as president of the United States, which is expected to draw an unprecedented number of protesters.

Though many members of the military and the National Guard have been planning this inauguration since 2012, the local armory building in Washington, D.C., opened its doors to display a large map of the city and explain the plan and movements of the president on Inauguration Day.

Trump...