An Australian video about the use of transglutaminase, also known as meat glue, to turn scraps of meat into a nice filet.
According to an article on Yahoo, meat clue is not banned in the United States.
Meat glue is banned in the EU, but in the US, the FDA classifies it under GRAS (generally recognized as safe). Transglutaminase is not required to be posted on the ingredients list.
I think I'll stick to eating steak at home.