Red Line service is essential? Tell it to the dead train at Central

The MBTA reports inbound delays of up to 10 minutes due to a dead train that has to be shoved out of the way at Central. Yael reports from Harvard that people are being told the problem is "debris" on the tracks at Central, which doesn't seem like a nice way to refer to one of the Red Line's old warhorses, unless maybe it didn't just die, but dropped some parts, too.