We're all animals, competing with other species and with our
kind to copy our DNA into the next generation. That's what
evolution designs animals to do, those that fail going extinct. We
humans organize ourselves into tribes,
that compete with other tribes. And within each tribe, we organize
ourselves into myriad smaller groups that also compete for the
mates and resources needed to copy our DNA. That's what we
Americans are doing in Iraq, that's what the Sunnis and Shiites and
Kurds are doing, as well as al Qaeda and assorted other groups.
This set of essays is about tribalism as it plays out in various
parts of the world.