I'm writing this because as per usual, the news outlets are asking for free photos and videos from witnesses, a practice that has unfortunately become commonplace. DON"T GIVE YOUR WORK FOR FREE! I don't know how many times I can say this. You will lose all rights to your work if you give it over to the newspapers or cable TV outlets. Remember, they have money, make them pay you and retain your rights.
If they no longer have bureaus and staff to cover these events, don't be so willing to be their unpaid staff. You can put your work out in ways for yourself, or you can approach the news outlets and ask for payment with retention of rights to your images.
It's important that these multi-million dollar news companies start to be told NO. Their staff is paid, make them pay you.