A Wisconsin man was identified from DNA pulled from a partially eaten burrito and arrested in the firebombing of an anti-abortion lobbying group’s office last year, prosecutors said. The man, Hridindu Sankar Roychowdhury, 29, of Madison, Wis., was arrested at Logan International Airport in Boston on Tuesday, according to the office of the U.S. attorney for the Western District of Wisconsin in Madison. He was charged with one felony count of attempting to cause damage by means of fire or an explosive. “According to the complaint, Mr. Roychowdhury used an incendiary device in violation of federal law in connection with...