Are they Boos or 'Froome'?
Boos. The podium on Sunday isn't likely to be very edifying but at least he'll be out of spitting range.
What the fans are seeing is one guy with a strong team who has clamped a tight lid on the proceedings and is crushing anyone who attacks him. It seems that's how the Tour is won these days, and it smacks of the Armstrong years; so automatically he's accused of doping because anything else is too complex for the thickos to understand. It doesn't help that despite all of Armstrong's "never tested positive" protestations and the support he got from the authorities, from around his second Tour win the fans were shouting "dope" at him, and years later they were shown to be right. Anyone whose Tour-winning machine works will get the same treatment.
The funny thing is that Movistar have a good team, which is allowing Quintana to put a bit of a crack in Froome's plaster, but nobody is shouting at them. Take Froome and Sky out of the picture, however, and they'd be the target. Alberto's losing but the S-T boyos are up there with him and I haven't heard anyone complaining. The key point is that neither of them is winning.
I'm sorry for Froome, who looks clean to me. I'm pleased he's defending his lead, but it does seem a little too coldly methodical and slightly boring. The battles for stage wins and the other jerseys are much more interesting.