The president of Mexico has condemned Arizona's new immigration law, describing it as discriminatory. The legislation will require Arizona police to question people about their immigration status if they suspect they are there illegally. Mexican President Felipe Calderon warned that relations with the US border state would suffer as a result. Mr Calderon warned that Mexico would use all means at its disposal to defend its nationals. Under the new law, day labourers face arrest for soliciting work if they are in the US illegally, and police departments can be sued if they fail to enforce the law.