It's been in rap songs, movies, slang street talk etc. Not to mention it's popularity here and the world. It has been standard army issue and still is I think. I have a friend who knows of an idiot at work who shot himself in the knee with hydrashok ammo the bullet didn't even pierce the knee cap...luckily, it rolled off and out the back of the knee. The 9mm is the utmost glorified caliber/gun to date. But it's considered a "girls round" by many of pros and even myself with no knock down power and stories of officers having to pump a person up with full clips before stopping them are far to common. NYPD carries 9's with hydrashock ammo. Why not carry a .40 or 45 and be done with it? So.........why the 9.