Sheriff Joe Arpaio is dispatching armed posse members to "guard" black churches in the Phoenix area. Call me cynical, but something about this makes my skin crawl. There's the whole issue of armed guards in churches, for one thing. That's just not a very welcoming thing, nor does it feel like the right response to a terrible event. And then there's just the fact of Arpaio himself, who is roundly despised by minority communities in Phoenix for his racial profiling and hamhanded ways. Maricopa County Sheriff Joe Arpaio, who already is under federal supervision because of a ruling two years ago that his office racially profiled Hispanics in its traffic and immigration patrols, is scheduled to go to trial in August in a separate lawsuit alleging additional discrimination against Latinos. He said the Rev.