We made it. Not a thing untoward or amiss. Security at O'Hare Airport seemed attentive although not excessive. Barb and I got put into a special line and received special attention (body scan, pat down) because we didn't have round-trip tickets. (We're flying back from Boston.) Or else we just looked suspicious.
A nice round of applause on the plane when the cabin attendant announced that we had some police and fire fighters on board, heading for the memorial service. A sign in the JFK airport concourse asking everyone to remember 9/11. A little memorial in Central Park. Otherwise everything seemed normal; the park was filled with runners and bikers. We didn't pass a single check point.
We're in a Midtown hotel and didn't try to get to the crowded ceremonies in lower Manhattan at the site of the 9-11 memorial. Today was for family. We'll check it out a little later.
No doubt, many of us feel a little silly worrying about another terrorist attack that (as of this writing) hasn't materialized. On reflection though being cautious is no vice. But it does say something that the terrorists couldn't launch an attack. Probably because they couldn't find enough idiots willing to blow themselves up for a lost cause.