In one of his first acts as the new Chief Justice, John Roberts hired all three of the former law clerks for the late Chief Justice William Rehnquist: Mark Mosier, Michael Passaportis, and -- most importantly, at least to me -- my former student Ann O'Connell. He also brought with him two clerks from the D.C. Circuit, Dan Kearney and Kosta Stojilkovic.