How did the AIG bonuses come to light?

Factual Questions
1

I learned about the bonuses on cnn, but how did cnn find out? Was there a whistle blower? Do public companies have to reveal bonuses? Something else?

2

Here are some timelines of events.

3

I think one of them went and bought an airplane or something…thats a pretty big deal

4

It was public record Sep 26 when AIG filed an 8k with the SEC. I think it was one of the peripheral attachments.

I remember Elijah Cummings was bitching about it around that time and was promised it was dealt with.