“Put them under oath or it is meaningless...”
My thoughts as well. If he doesn’t do such, and is just trying to pretend there’s some sort of investigation, thinking he’s making some sort of respectable name for himself, he’s about as worthless as Trey Gowdy, and will only succeed in making the F&F operation go down in history as a big nothing burger, a conservative witch hunt, with no justice for the dead and their families resulting from democrat gun running. Chafetz has turned out to be quite the disappointment, like quite a few others, who obtained office running as a TEA Party rebellion candidate, IMHO. Hope he’s genuinely out for blood in his investigation.
They will take the fifth. They will not testify.