Yesterday, I dutifully sent in my letter supporting the state House bill protecting major parks from overshadowing by beyond-zoning towers. Today, I find out that "a request was made" to exempt the Greenway from the protective legislation -- so that the BRA can proceed to legalize all those unlawful towers it plans to encourage along the Greenway corridor. Well, gosh, who might have made such a request? Perhaps Mayor Tom Menino, who is officially opposed to the bill, the same Menino who told the Boston Globe last September that we must not canyonize and overshadow the park?