Bertie Simmons is the septuagenarian principal of Furr High School on Houston's East Side, where 15gangs have been identified on campus. Despite this, calmness prevails and test scores are rising, thanks to the former district superintendent who came out of retirement to take over the then-troubled school in 2000 and uses "positive reinforcement" as her motto. Biggest exploit to date: She got on a plane with 32 gang members from Furr who'd earned a trip to New York City to visit Ground Zero (they didn't believe 9/11 was real) after she extracted a promise from them to keep trouble off the campus for one school year. They even took in a Broadway showing of 42nd Street. And liked it.