A few weeks ago I sent an e-mail with the subject heading "Subway Art" to the MTA. I wrote about how much subway art means to me and, no doubt, millions of riders; I asked for more mosaics and bas-reliefs, and made some suggestions about their online gallery. My e-mail was, I think, warmly appreciative. Within minutes I received an automated confirmation of receipt, with the subject heading "Subway Art Incident." Poor MTA! Such anxious humility in that bit of automated editing...