A free-speech suit against MARTA started with a saleswoman’s concerns about how an advertisement promoting abortion providers would play in the “Bible Belt.”

Earlier this year, the National Abortion Federation, an abortion providers’ association, tried to buy $2,000 in interior bus advertising for a national campaign. One ad said women who had had abortions deserved to be called “sister, daughter, mother,” while another promoted abortions as “ten times safer than childbirth.”