ey parts of Arizona's controversial immigration law have been been blocked by Susan Bolton, a US judge, who said:<br /><br />"There is a substantial likelihood that officers will wrongfully arrest legal residents" - and that Arizona had no right to enforce federal immigration rules.<br /><br />To its supporters, the law is needed to stop the flow of illegal immigrants from Mexico overrunning Arizona, and fueling rising crime rates.<br /><br />To its opponents, including the Obama administration, it would lead to wrongful arrests and ethnic profiling.<br /><br />Already, some migrants have been driven out of the US and into Mexico - a country that many do not really know. <br /><br />Al Jazeera's Mariana Sanchez reports from the Mexican border city of Nogales.
