WASHINGTON (AP) — The head of the Environmental Protection Agency has broken months of silence about his frequent premium-class flights at taxpayer expense, saying he needs to fly first class because of unpleasant interactions with other travelers.

EPA Administrator Scott Pruitt spoke about his flight costs on Tuesday in a pair of interviews in New Hampshire, following a first-class flight to meet with the state's Republican governor and tour a toxic waste site.

Pruitt told the New Hampshire Union Leader he had some "incidents" on flights shortly after his appointment by President Donald Trump...