TRENTON, N.J. (AP) — A steel beam in the symmetrical shape of a cross — a remnant from the World Trade Center wreckage — has drawn criticism from an atheist group, which objects to the artifact being kept at ground zero as a religious emblem. The trade center site is owned by the Port Authority of New York and New Jersey, the bistate governmental agency that also operates the region's three major airports and bridges and tunnels connecting the two states. "Many people who died on September 11 weren't Christian. There were Jews, Muslims, and atheists who died," Ellen Johnson,...