Latest post from TL Davis. Follow the link on his post to his latest article at American Thinker.
In my opinion, Senator Grassley is the right man to be investigating this. He is my Senator. We don't always agree on everything, but I have a lot of respect for him.
You might consider sending Senator Grassley a quick email expressing your gratitude for his efforts on the Gunwalker fiasco and encourage him to keep it up.