Charles Schumer declares that passengers have the right to bring a carry-on aboard “without having to worry about getting nickeled and dimed.’’ ...[I]f Schumer grieves so deeply about travelers being “nickeled and dimed’’ when they fly, why has he never gone after the US ticket tax, which adds 7.5 percent to the price of every domestic flight? Or the $16.50 the federal government charges for each international departure and arrival? Or the $17 in customs and inspection fees paid by passengers flying into US airports from abroad? Or the “passenger facilities charges’’ (up to $18 per round-trip)? Or the “US Security Service Fee’’ ($2.50 per departure)? Or the “domestic segment fee’’ ($3.70 per flight segment)? The government’s unremitting “nickeling and diming’’ of airline passengers doesn’t trouble the sleep of New York’s senior senator. Only when a private firm acts does he toss and turn in anguish.