Trump's D.C. arch is now a military complex. Here's how that complicates things

"So suddenly, to take a resource that was not about security at all … and now turn that on its head, it seems to me we're back to square one because we're reviewing a different facility than when this started," said Charles Birnbaum, CEO and founding president of the Cultural Landscape Foundation, one of the outside groups involved in the historic preservation review.