Mayor Bloomberg was photographed yesterday wearing what appear to be hearing aids, but he refused to talk about the listening devices. While on a tour of the underground construction of the 7 train extension and later at a homeland security meeting, Bloomberg was spotted by the Daily News wearing flesh-colored devices in his ears that could be hearing aids, but also resemble ear plugs. Bloomberg—who turns 68 later this month—wouldn't talk about the hearing aids, and a mayoral spokesman declined to comment. According to 1010WINS, Bloomberg wasn't wearing anything in his ears at a press conference today, and when journalists asked him about hearing aids, he dodged the question, responding: "I couldn't hear what you had to say."