The 66th annual Sturgis S.D. motorcycle rally and biker shootout is off to a bullet-flying start: Chad John Wilson, 30, of Lynnwood, a member of the Hells Angels Washington state chapter called the Nomads, was one of two bikers charged with attempted murder yesterday after exchanging gunfire with members of a rival gang, the Outlaws. Six Outlaws were wounded as other campground-goers dived for cover. The motive's unclear but not hard to guess: it takes little more than an insult, real or perceived, to get the biker guns going. Wilson is one of 10 members of the Washington Angels who, along with the Bandidos Motorcycle Club led by international president George Wegers of Bellingham, are facing dozens of charges in federal courts here and in Nevada as the government undertakes its latest, periodical biker-gang crackdown. A story in the Sioux Falls S.D. Argus Leader today - quoting me among other "experts" on bikers (I wrote one story) - notes that local authorities have been bracing for violence at Sturgus. "It isn't rocket science," said a plain-speaking Meade County Sheriff Ron Merwin. "When they're shooting each other nationwide, then they're probably going to do it here..." Now that's policing.