When questioned about troubled investment brokerage Merrill Lynch deciding not to move to Ground Zero (characterized as a "major setback" for development by the NY Times), Mayor Bloomberg struck an optimistic tone, "The properties that [developer Larry] Silverstein is building are very attractive. He can rent them at lower rents than midtown. He will have to do that to attract business." He added, "I'm assuming - I don't know for sure - their [Merrill's] current......