Good morning. A former Willkie lawyer is now a cooperating witness in a big insider trading probe. Plus, the D.C. Circuit appeared skeptical that the Trump administration could legally punish Senator Mark Kelly over public remarks; ethics filings show pay for Freshfields and White & Case lawyers; and Paramount settled a lawsuit over the rights to the “Scream” mask. Here is a look at how a potato-based diet changed the genetics of Andean people.