> I hope he is treated humanely by the police.
Russian police can be very brutal, here is the video of Kasparov being arrested: http://www.youtube.com/watch?v=cf55YyMC6qk
He is put into police bus, and then you can hear him screaming: "What are you doing?!" and "Aaaay"(not sure if it is transliterated correctly).
I've read some blog post(from an activist who was in the same bus) pointing that he was actually beaten.