New York’s most notorious revolutionary tourist — “sandalista†Lori Berenson — is back in Manhattan from Peru, where she served 15 years in prison for terrorism. Forgive us if we don’t put out a welcome mat. The LaGuardia HS grad and MIT dropout has been stuck in Peru by law until her full 20-year sentence expired. Now that it has, she’s heading home to her parents’ Kips Bay apartment. Though lionized by the left and worshiped by The New York Times, Berenson, now 46, was no naive idealist. She spent years traveling Central America with Marxist groups until she hooked...