Laura Robson was talking about how she'd been reading the book about the Armstrong scandal too, and how it was shocking/fascinating.
Whether they are all talking about it in public or not, I'm sure a lot of players and those around them have been talking about it to each other. I read somewhere that it was the talk of the locker rooms and behind the scenes at the Australian Open. Players will be asked about it, and will be expected to have an opinion. And no matter what that opinion is, someone is bound to complain that they are being naive, and/or been told to say that by PR people.