While other Americans in Barcelona might be hopping between tapas bars, [American Peter Gelderloos] was hanging out at a squatters' rights protest, lending support to the protesters. snip Gelderloos, 25, of Vienna, Va., says the charges are ridiculous. snip He believes that his political beliefs - he is an anarchist who sometimes dresses the part - caused police to treat him suspiciously. snip The protesters were pushing a shopping cart rigged to look like it had a cannon sticking out of it, said a Spanish police official in Barcelona who spoke on condition of anonymity in line with police policy...