NYC Pollution 1966.200DeadThanksgivingWeekend.NealBoenziNYT Published March 12, 2017 at 2048 × 1366 in Evening Prayer 13.3.17, James Theodore Holly, Bishop of Haiti & Dominican Republic, 1911 Some people think U.S. clean air laws are too strict. They forget that on Thanksgiving weekend in 1966, 200 people died in New York City breathing all this. (Neal Boenzi/The New York Times)