The WASP Injection Knife is unlike any other, as it contains a cylinder of compressed gas in the hilt. When used on a subject, about one cubic foot of gas, stored at 800 psi, is rapidly injected deep into the wound site. This injection causes much more damage than a single knife wound, both from the displacement of internal organs and from the freezing effect of the free expansion of the gas. One well-placed hit can easily kill or immobilize a large shark. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of an awesome $35,000 racing simulator you can build at home.