Secretary Michael Chertoff testified at a hearing on oversight of the Department of Homeland Security, focusing on U.S. citizenship and Immigration Services issues and preparation for further implementation of the Western Hemisphere Travel Initiative, the the REAL ID Act. Topics included the naturalization application backlogs; Northern border crossing issues such as the economy and communities; the border fence along the Mexican border, where the government is seizing property claiming eminent domain; immigrant investors; seasonal worker visas; and immigrant detention centers.