I have little to report thus far. I spent most of today getting situated at the place I'm staying, getting my credentials, finding out where everything is and so forth. But what has struck me thus far is that the security -- at least in the hall, and immediate vicinity -- doesn't seem that different from what I remember four years ago at Philadelphia and Los Angeles.
On the streets of Boston, the police presence is palpable. But it's mainly street cops on the corners and stuff like that.
I'm sure the souped-up security is there, probably in places I haven't been. But it hasn't been as visible as you might expect.
(Of course, maybe I've just grown accustomed to the new way of things since September 11th. I don't remember seeing anyone in combat fatigues at either of the 2000 conventions ...)