President Obama arrived in this industrial city today to talk trade with his North American counterparts, reflecting a shift in focus from security, which dominated the agendas of past "Three Amigos" summits. Obama met with Mexican President Enrique Peña Nieto and Canadian Prime Minister Stephen Harper to discuss commerce, immigration, energy and security.

On the eve of President Obama's visit to Mexico, Robert Siegel speaks with Arturo Sarukhan, former Mexican ambassador to the United States. They discuss the security situation in Mexico, the prospects for immigration reform and the trade agreements shared by the two countries.

On Feb. 19, President Obama heads to Mexico to meet with President Enrique Peña Nieto and Canadian Prime Minister Stephen Harper at the North American Leaders' Summit. The three leaders will undoubtedly look back at the last 20 years, recognizing the mostly positive changes that the North American Free Trade Agreement (NAFTA) and other cross-border ties have brought to the three nations.

The White House says it will be responding to a petition calling for the deportation of troubled Canadian-born pop star Justin Bieber. With more than 234,000 signatures and counting, the deportation request is well over the 100,000 names a petition on the White House website needs before the Obama administration is required to respond to it.

A long-awaited environmental review of the Keystone XL pipeline released Friday by the State Department found the project would have a negligible impact on climate change, bolstering the case for the controversial project as it heads to the White House for a decision on its construction.

Reforms to Mexico's energy sector were signed into law late last year. The legislation proceeded rapidly from President Enrique Peña Nieto's announcement of the reforms in August, to the negotiations among the major political parties during the fall, to voting in both houses of Congress, resulting in a majority of the 31 state legislatures changing the Constitution. For the first time in 75 years private participation will be permitted in Mexico's energy sector, not only in oil and gas, but also in electricity and power generation.

Cuban President Raul Castro called on Latin American and Caribbean leaders Tuesday to work together on pressing regional problems at a gathering of all Western Hemisphere nations except the U.S. and Canada.

Iran is now our new favorite place to discuss at dinner. It is still one country. They seem to speak English there. Americans know we have a strained relationship with Iran from all those hostage movies, but we remain fascinated with all things Persian. America’s top destination remains Europe. It has countries we can visit — museums and hotels and attractions, such as the changing of the guard.