I love this idea. Just this weekend I had brunch at an upscale pseudo-bistro and when I arrived the hostess knew exactly who I was meeting. Before I even said a word. My girlfriends and I were the only black people in the restaurant. I've gotten so used to that (being the only or one of) at this point. It's still wonderful to go somewhere and see other black folks, though.
The friendly takeover idea does remind me of the swarm, however. Which reminds me that I have yet to read Howard Rheingold's Smart Mobs. From the web site's summary of the book:
Smart mobs emerge when communication and computing technologies amplify human talents for cooperation. The impacts of smart mob technology already appear to be both beneficial and destructive, used by some of its earliest adopters to support democracy and by others to coordinate terrorist attacks.
The war thing
PopMatters has some good essays on the cultural aspects of our war efforts and coverage.