Ah, the Second Avenue subway project—that mythical, subterranean Chimera that mayors and governors have spun tales about since time immemorial—is once again in danger of abandonment. With all the talk of service cutbacks as the MTA stares down the barrel of a $1 billion budged deficit, some are wondering if the transit authority should really be spending an estimated $3,000 every minute of every day to dig under Second Avenue at this particular juncture. Even......