So today, Rasmussen's dragging a Astana guy and a Caisse guy up the hill. The announcers mention that these guys are not going to help out because their leaders are back in the peleton. So, my questions are:
1. By following Rasmussen, are they causing him problems? I.e. are they slowing him down? For the same speed, do you use more energy (compared to soloing) if someone is drafting you?
2. Why aren't they back helping their leaders up the hill, like Kloeden did for Vino?
3. Why wasn't Contador helping Levi up the hill?