Liquid Armor Protects Against Speeding Bullets

It seems like the brits have invented a "liquid armor" that is now undergoing testing. This armor is light and flexible, and apparently only hardens into an impregnable armor upon impact. It also hardens for the same duration as the impact. Sounds like something out of sci-fi movie, doesn't it?

However, tests have proven that it can protect against knife stabs, low impact guns, and hypodermic needles. They have yet to test it with high speed bullets. Anybody game to volunteer for the test?