Some people who were there that day (the Raider's fans) swear that the ball touched the ground before Harris caught it. That leads to my favorite part of the story of the Immaculate Reception. You'll notice when Harris crosses the goal line, the ref doesn't signal touchdown. He runs off the field. John Madden, Raider coach at that time, has always swore that the ref went and called the stadium security office. As Madden tells it, the ref said, "How many guards to do you have to get me out of here if I call it an incomplete pass?" When told three, he hung up the phone, ran onto the field, and signalled touchdown.