It was a very cold and windy day on the campus of the University of Iowa. But some of the students were hot--not because of the weather, but because of a small group of open-air preachers on campus.----Having heard from students that the group of preachers might be of the type who preach from a -sinless perfectionism- perspective, Tony stood a discreet distance away from the preachers, holding his -Stop and Talk- cross and distributing gospel tracts.----A student name Issac, a professing Christian, stopped to talk to Tony. During the conversation, Isaac questioned the divinity of Jesus.