A holy war of sorts is heating up in a Detroit suburb, where members of the local Muslim community want loudspeakers on mosques to announce the Islamic call to prayer five times each day. But the idea is running into opposition from other residents of Hamtramck, Mich., many of whom are Christian, who think the prayer calls as early as 6 a.m. and as late as 10 p.m. would be disruptive. "When you call to prayer, you are proselytizing, and as a citizen of the United States I don't want to hear it," Bob Golen, 68, told the Detroit Free...