Trampling Effect News Today

Jackalone, a former nypd official. hes been with us all morning helping us understand that. were getting accounts from witnesses who say that they heard an explosion, they saw the stampede, they were there when this all happened. but again, i think if theres one glare historic here, its this really could have been so much worse. >> yeah, if you just think of the consequences of what happens when people start to panic. so, there could have been a trampling effect, could have been a lot of differe...