About 12 million undocumented immigrants in the United States lack fundamental rights such as education-related financial aid.<br /><br />During his campaign for the presidency, Barack Obama, the US president, promised to overhaul immigration laws.<br /><br />But more than a year after he came into office, US authorities have deported more than 500,000 people.<br /><br />Roger Wilkinson reports from Washington, where many are calling for the US president to fulfill his pledges. <br /><br />[March 25, 2010]
