The Brief The White House has proposed building an underground security facility. The facility would be under nearby Sherman Park. The National Capital Planning Commission is having an open meeting at 1 p.m. on April 2 to discuss the project. WASHINGTON - The White House has proposed building an underground security checkpoint for visitors. White House underground security checkpoint What we know: The National Capital Planning Commission shared plans and renderings of the facility on Friday. The center would be built underneath Sherman Park, southeast of the White House. Prior to President Donald Trump tearing down the White House's East...