Perhaps. Then again, judging by the few times I've taken the metro for an inner-city errand, I'm not sure I'd want to ride it to work even if the line did run f

Perhaps. Then again, judging by the few times I've taken the metro for an inner-city errand, I'm not sure I'd want to ride it to work even if the line did run far enough. At least, not without ... martial-arts training? Or maybe a "penniless grad-student" disguise?