Claytor, that is not true. The 500's and 1500's both have trash receptacles in the bathrooms.
Also, the MBTA will not blame themselves for the trash all over the coaches, they WILL BLAME US. Well, we are obviously obligated to haul our trash around with us until we get home, or to work. With all the removed trashbarrels, littering is also going thru the roof.
Besides, keep in mind these people are heartless, cold -blooded sick twisted animals. They don't need trashbarrels, they use themselves to hide the bombs, then blow themselves up. And for what????
Hoping for a rebirth of the Screamer fleet.