OT: Hit-to-kill warhead interception systems

[Targan]

Not that I've thought especially hard about it in the past, but I'd assumed that because the US government has been building GMD interceptor missiles and launch facilities for some years now, they must have a reasonable success rate in testing. Then I read the article below. I'm simultaneously stunned, amused and horrified. Why is such a huge amount of money being spent on full production and deployment of a system that has to this point never worked?

Here's why the US missile defense system is utterly broken