 Fireworks, fun to watch, but firefighters in New Jersey have spent the last several days dealing with a heatwave-fueled forest fire that consumed thousands of acres, and illegal fireworks appear to be the cause. The fire at the Wharton State Forest has burned over 4,000 acres, but is now 75% contained. Authorities are now investigating to determine who may have been responsible. Police report that so far, no structures have been damaged.