Guardian: Pro-immigration groups across the US expressed despair today after Arizona passed the toughest bills in the country which they say are aimed at forcing out hundreds of thousands of Latinos living illegally in the state... The new bill, passed by the Arizona house of representatives last night, greatly expands the powers of the police in dealing with illegal immigration, including for the first time giving them the right to stop anyone on "reasonable suspicion" they may be an illegal immigrant and arrest them if they are not carrying identity papers.