[JURIST] President Bush sent a memo to White House staff members Friday announcing mandatory "ethics" briefings next week. The week-long series of "refresher lectures" on general ethics rules and the protection of classified information appears to be in response to the recent indictment of Vice President Dick Cheney's former chief of staff I. Lewis "Scooter" Libby [NYT profile] in the CIA leak probe [JURIST news archive]. The lectures will be conducted by the office of White House Counsel Harriet Miers [official profile], and are mandatory for any staff member with a security clearance. Presidential advisor Karl Rove [official profile], who has also been under investigation by Special Counsel Patrick Fitzgerald [official website] in the CIA leak case, will be required to attend the sessions. AP has more.