Turns out Green Line service is down between Government Center and Lechmere. Here's the T Alert that was sent out: Green Line - Due to a wire problem at North Station. A substitute bus shuttle is operating between Government Center and Lechmere making all local stops. Passengers should utilize Orange Line service to make connections for Haymarket, North Station or Back Bay (for Copley area). Please allow extra time for your commute. 2/28/2008 11:01 AM......