Speaking publicly for the first time since he was caught on video striking the horse National Law (Constitution) in the face with his whip after the field crossed the wire in Tuesday's fifth race at Parx, jockey Paco Lopez posted a tweet Thursday in which he admitted he was at fault. "I take full responsibility for my actions," Lopez wrote. "I am aware that our sport is under a lot of scrutiny and I fully apologize to everyone involved in our sport--fans, horsemen, management, racing commissions, HISA and of course,...