Rachel Maddow explains why SDI will never work

I was flabbergasted by this explanation. I had to look up Ms Maddow credentials, and this is what Wiki says:

A graduate of Castro Valley High School in Castro Valley, California, Maddow earned a degree in public policy from Stanford University in 1994.

Also:

In 2001, she earned a Doctorate in Philosophy (DPhil) in politics from Oxford University. Her thesis is titled HIV/AIDS and Health Care Reform in British and American Prisons.

This must be the explanation. Or excuse, whatever. In any case, I have to remember that interpretation of missile defense, it will be the in thing for the next month or so. I bet.