If it's good enough for our fighter pilots, it's good enough for David Muir's Made in America Christmas. Randolph Engineering, founded in 1973, is family-owned and operated in Randolph, Massachusetts -- and they've been making sunglasses for U.S. fighter pilots since 1978. "World News Tonight" anchor and managing editor Muir traveled to Manhattan Grand Optical to try on the American-made shades worn by those pilots, who reach speeds of 1,500 miles per hour.