This is how it's done.
The following link is to Representative Steve Cohen's (D-TN 9th) blog site. Scroll down to My Cross-Examination of the New Attorney General for video of his careful questioning of AG Mukasey.
Today [7 Feb], I had the opportunity to question Alberto Gonzales' replacement, Attorney General Michael Mukasey, in a Judiciary Committee hearing. I asked him whether he would enforce contempt citations against senior White House officials should the House of Representatives vote for them, and about the current state of the so-called "War on Drugs."