Sweden invents a revolutionary wall that can stand against bullets VIDEO

That's awesome

It's so sad that we even need to invent things like this.

and some people say sweden is wasting its time building stuff..

I recall reading about a US company that developed something like this...back in 1983. The outer wall is hard, flattening the bullets, and the inner core is cushioned so it stops the bullets by absorbing their energy. However, you CAN shoot from inside to outside because the unflattened bullets aren't slowed by the damping/cushioning material, and then they go through the hard outer shell with enought velocity to still be effective if the range isn't far. It was thought that this could be useful for buildings like embassies that were sometimes attacked by mobs. That wasn't too long after "students" in Iran attacked the US embassy there and kept Americans as hostages for > a year.