Questions about Iran

I was told that we could do a blog about some of the questions that we had regarding the topic of Iran.

1)  If it was pretty widely known that the elections were rigged, then why didn't anybody (or country) do anything?  Couldn't we have the UN supervise their elections to make sure that they were fair?

2)  What effect did the events in Iran have on the rest of the world?  I know that there were many other uprisings against governments in the middle east right around and after this happened, but was this the spark that caused all of the others?

3)  Were there other solutions to killing protestors that wouldn't have caused such a big riot?

4)  What is the deal with the Basiji?  Who are they, who pays them, and what is their exact job?

5)  What would Iran be like if the other guy had won the election?  How much would it have changed?

I'll try to answer some of these later on in the year or bring them up in class discussions because I actually would like them answered.