The Rev. Chet Gallagher of San Jose, Calif., prays Wednesday in the alley behind Wichita Family Planning in Kansas. Two people were arrested Wednesday as tensions rose between abortion opponents and supporters of abortion rights. The arrests, the first during the anti-abortion Summer of Mercy renewal campaign, were made after separate shoving incidents. Both people arrested were abortion-rights supporters, police said. They faced misdemeanor battery charges. Organizers said about 580 people marched peacefully.