Instead, his administration has ordered the national parks and hundreds of other monuments and museums supervised by the Department of the Interior to ensure that all of their signage reminds Americans of our “extraordinary heritage, consistent progress toward becoming a more perfect Union, and unmatched record of advancing liberty, prosperity and human flourishing.”

Those marching orders, which went into effect late last week, have left Trump opponents and free speech advocates gasping in disbelief, wondering how park employees are supposed to put a sunny spin on monuments acknowledging slavery and Jim Crow laws. And how they’ll square the story of Japanese Americans shipped off to incarceration camps during World War II with an “unmatched record of advancing liberty.”

At Manzanar National Historic Site, a dusty encampment in the high desert of eastern California, one of 10 camps where more than 120,000 Japanese American civilians were imprisoned during the early 1940s, employees put up a required notice describing the changes last week.