Bragg said the weapons are increasingly showing up in crimes across the city and he is pushing for tougher laws.
Futuristic technology is the next step in knee-replacement surgery, and it's happening on Long Island.
3D printed houses could also end up having a radical effect on the wallets of potential buyers in America.
KFC believes it will soon hold the recipe to the "meat of the future," but it would be more like printing instructions.
One kid is trying to show others science can be fun: "Okay you may hate math, you may not like science, you may not like language arts, you may not even like art, but it all comes together with this one project," Xander said.
Nine-year-old Patches' skull is now patched up with a 3-D printed titanium plate after she had a tumor removed.