“The Justice Department, in its recent lawsuit against Arizona, claimed that the Constitution gives the federal government nearly exclusive authority to make the nation’s immigration laws. Accordingly, states have no right to pass their own enforcement laws that are more stringent than federal policy, especially if such laws might infringe on the rights of other citizens, or the rights of the aliens themselves. But what if a state wants to pursue an enforcement approach that is far less strict than current federal policy?” (08/31/10)