Sometimes God lets things happen to show human beings that it won't work. As humans we gravitate on wanting to do things on our own. I believe that was what most of the Old Testiment was all about. God set up a system to where if they would obeyed His laws He would be their God and they would be his people. The problem with that is His standards are too high for us to acheive. This system of doing to gain favor with God does't work. He knew it wouldn't. He had to show us that so when He gave us a system of grace we'd get it. The same goes now for why I think God let Obama win in 2008. America had to see that liberalism doesn't work. Judging by all the elections since he took office I'm hopeful that we're getting the hint.