This is chief Paul macMillan, lord high defender of the MBTA. I'd like to remind you that danger is everywhere, and any of the hundreds of pieces of litter and forgotten bags could be terrorist plots to kill you. Despite the fact that the MBTA has never been a terrorist target and, in fact, no American buses ever have, I'm going to spend the next 55 seconds loudly telling you to be afraid.
It is our hope that with so many people looking for terrorists, you will be too busy to complain about what an incompetent job the MBTA does. Since the number of complaints about incompetence have been rising and the number of terrified peasants begging for protection has been falling, we have once again called upon the "fear" branch of our "baseless propaganda" division. You will notice that not only have we added an additional 10 seconds to this speech, we've added a 15-foot cube directly in the middle of the walking path and labeled it "it's never this obvious". Which is true, because things that don't exist aren't obvious.
So please, everyone, participate in our "hear something, fear something" campaign and carefully look at the floor around you, your fellow passengers, anywhere but up.