premise: There is some solace in thinking this way , I suppose , because we can believe that there are no faceless enemies out there . Only the enemy next door , the one we know . That is more comforting , I suppose . The attacks changed the world . From the way we travel to the way we see the world . But as I sit and type this , a blue jay calls out , the wind shakes leaves from trees , and a lawnmower is heard in the distance . When there are no words to say , it is best just to listen . What may have caused you to think that there are faceless enemies ?
hypothesis: There are terrorists that will use violence .