1. When a co-defendant is represented by counsel who previously represented the defendant, thereby creating an actual conflict of interest, may a court cure the conflict by severing the cases rather than disqualifying counsel?

2. Did the government's unfettered use of acquitted conduct to prove the defendant's guilt violate the issue preclusion component of the Double Jeopardy Clause?

When a co-defendant is represented by counsel who previously represented the defendant, thereby creating an actual conflict of interest, may a court cure the conflict by severing the cases rather than disqualifying counsel?