Be careful with that - rights managed footage will have all of the proper releases signed so you can use them commercially, but editorial footage doesn't have any rights released and you may be stuck with a lawsuit if you use someone's likeness for commercial use (there's special laws for journalism that don't apply to the same image/footage in commercial use). I strongly suggest you consult briefly with an intellectual property or, ideally, an entertainment lawyer before using news footage commercially.
If you need the footage and can't find it, find some online and just recreate it with all of the names and faces changed.
Jonathan Ziegler
http://www.electrictiger.com/
520-360-8293