Here's a brief video interview with former world champion Anatoly Karpov, taken by
ChessVibes at the
Corus tournament. It's fairly short, but he has some brief comments about Carlsen and the Corus tournament, Fischer's passing, and "
handshakegate". (If I recall correctly, he too has had some non-handshake games, but the interviewer didn't bring that up. It might have proved entertaining had he done so, but he was right to refrain. I don't believe he and Kasparov ever abstained from shaking hands, but I think he did abstain on several occasions involving Korchnoi and other Soviet defectors.)