Preemption grounds. >> greta: we are caught in the weeds fighting about all the issues, when the problem is arizona wants its borders more secure. most people believe that we need a standard national immigration policy, whatever it is. so while the federal government is suing the state, we're not dealing with any of these problems. i guess secretary napolitano says there is more being done about the borders. we are moving forward. >> it is not enough. it is true they've added resources. that doesn't answer the question, is it enough? secondly, there are still policy decisions that have to be m...