At the world's busiest airport, plainclothes officers patrolling public restrooms in search of luggage thieves have instead uncovered a rash of other, more sordid crimes. The new restroom dragnet has led to the arrests of more than 30 people in three months for indecent exposure and public sex acts at Hartsfield-Jackson Atlanta International Airport. Among those arrested is Ed Wall, the board chairman of the Metropolitan Atlanta Rapid Transit Authority. An officer said he saw Wall having oral sex with another man. Wall, who has temporarily stepped down from his post, has maintained his innocence. A court date has not...