Regarding the comments...most are the usual trolls. They are the same people that wish death on a child with a peanut allergy.
I admit, I did not expect Hitchbot to make it safely coast to coast in the US. Not because I hate Americans and not because I think they are all evil. But, as a country, so much of your history is violent. Your society is much more "me" based than Canada is.
Hitchbot required strangers to transport and take care of him. I do not view America as nurturing, and that is not to say that no American is. I think many are. But as one small Canadian who has occasionally needed help when dealing with American companies and phoning the CSR's....nurturing is not the word that comes to mind. When contacting Canadian companies, they have always been much easier to deal with and reach a satisfactory resolution, usually.