Some posters say she cut in too soon but after REPEATEDLY watching the video, Mu didn't cut in on anyone...she was tripped. As the REIGNING Olympic Champion USATF needs to allow her a solo rerun to run faster than one of the top 3 finishers. It's no doubt that if Mu HADN'T BEEN TRIPPED she would have WON easily, her even spilt 1:58 semi showed she was fit enough to win.