In this June 23, 2014, file photo, job seekers and recruiters meet during a job fair in Philadelphia. Philadelphia Mayor Jim Kenney signed a bill Monday, Jan. 23, 2017, that bans employers from asking potential hires to provide their salary … FILE – In this July 15, 2009, file photo, job seekers wait in line during a sixth annual “Grand Slam Career Fair” at Citizens Bank Park in Philadelphia.