A Russian Cruise-Missile Submarine Holds a Terrifying Record: It Sank Twice

K-429 had not suffered irreparable damage; she was refloated, repaired, and returned to service. Her second life was brief, however; in September 1985, the boat sank at dockside with the loss of one crewmember. The causes of the second sinking remain hazy, but appear unrelated to the first incident. K-429 was again raised, but not returned to sea; for the rest of her career she served as a training hulk. She was scrapped, along with her sisters, in the 1990s.

America's Double Standard on Nagorno-Karabakh

One of the most important promises of Donald Trump’s presidential campaign was to end the damage that special interest groups and lobbyists inflict on the United States’ national interests, and to pursue an “America first” policy in the best interests of the American people.

The Hidden Role of Chemical Weapons on 9/11

Lost in the piles of rubble amid thousands of corpses on that tragic day on 9/11 were small handheld devices which afforded the hijackers a distinct advantage in the small, confined spaces of the aircraft cabins: namely, miniaturized chemical weapons containing CS gas (from the initials of its American inventors, Ben Carson and Roger Staughton) or cayenne pepper.  This often-overlooked component of the attacks is critical to understanding how four or five people managed to commandeer three out of four wide-bodied jetliners and turn them into massive incendiary missiles.

Without a Bullet a Gun is Useless: There Are the 5 Most Lethal Pieces of Ammo

A normal 9mm firearm will typically have a maximum chamber pressure of 35,000 pounds per square inch (psi). By using stronger, more powerful gunpowders +P ammunition increase chamber pressure for a 9mm firearm to up to 38,500 psi—a 10 percent increase. This increases the bullet’s velocity and the ability to incapacitate the target. The downside is that not all firearms are engineered to withstand repeated use of very high pressure ammunition, and +P ammunition can lead to increased wear and tear.