of when, the corrupt Mayor Boss Tweed killed any thoughts on having the new york city subway built, accept it is the corporations & the shills in congress, that are the Boss Tweeds of our day. I wish more people in this country would realize these facts. This way of doing business should be totally unacceptable. Corporations should not be allowed to kill competing technologies because, they themselves cannot not compete, period. Because just as sure as there "will be another ice age" innovations will move forward.