A federal judge Tuesday granted the city the six months Mayor Rahm Emanuel said it needs to figure out where to allow gun shops in Chicago. U.S. District Court Judge Edmond Chang said his decision balances the needs of the city to craft regulations with the public’s Second Amendment rights. Pete Patterson, an attorney for gun rights advocates, told Chang the six-month time frame is too long. Patterson said the city acted far more quickly to a court ruling that overturned the statewide ban on carrying concealed weapons in Illinois. But Andrew Worseck, a city Law Department attorney, said that...