Argument: Arizona law causes distrust of police, undermines enforcement
Eugene Robinson. "Arizona's new immigration law is an act of vengeance." April 27, 2010: "One of the concrete problems with the law treating undocumented immigrants as criminals is that it gives those without papers a powerful incentive to stay as far away from police as possible. This will only make it more difficult for local police to investigate crimes and track down fugitive offenders, because no potential witness who is undocumented will come forward."
Richard Cohen. "In Arizona, immigration creates another Tea Party moment." Washington Post. April 27th, 2010: "Some cops will abuse their power – such is human nature – and the Hispanic minority will come to see the police as oppressors."