“President Donald Trump has insisted that a 250-foot-tall triumphal arch should be built near Arlington National Cemetery, citing long-abandoned plans to construct a monument there,” the Washington Post reports.“Local officials, preservationists and historians are now pushing an alternate idea: Abandon the arch and consider building the slender columns that were originally envisioned by architects and lawmakers a century ago.”NPR: D.C. airspace is complicated. Experts say Trump’s arch would add one more risk.