Immigration law expert and Beasley School of Law faculty member Jan Ting, a former assistant commissioner at the U.S. Immigration and Naturalization Service, joined "News Hour" host Roy Suarez for a discussion about immigration reform — a subject brought to the fore by Mexican President Felipe Calderón's visit to Washington. "Public opinion in the United States is sharply divided as to what the nature of the immigration problem is," said Ting. "One side thinks the problem is 12 million people who have to live without documents. The other side thinks the problem is that our existing laws are simply not being enforced by the federal government."