Big congratulations to LaGuardia Airport, long derided as an embarrassment to New York by travelers and this editorial page and, in 2014, then-Vice President Joe Biden. Biden, highlighting America’s failing infrastructure, said, “If I took you and blindfolded you and took you to LaGuardia Airport in New York, you’d think, ‘I must be in some Third World country.’” He was right: It was dirty, depressing and hard as hell to navigate.