MBTA police are investigating the defacing of 14 Green Line trolley cars at the Reservoir Yard in Brighton.
The graffiti was discovered at 5 a.m. today, according to Joe Pesaturo, an MBTA spokesman. Nine of the cars have been cleaned and returned to the tracks, Pesaturo said.
He said that service was not affected because the T owns a surplus of Green Line cars.
Note the OSama TAG..