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.

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.

Last year’s debate on immigration reform centered on discussions on improving border security for the nearly 2,000-mile border between the United States and Mexico by adding new fencing, more electronic detection technology including drones, and beefed-up numbers of security patrol.

Dr. Prabhjot Singh, a Columbia University assistant professor of international and public affairs who is also a resident physician in East Harlem in New York, is a practicing Sikh. As part of his faith, he wears an uncut beard and a turban. Last September, he was attacked not far from his home in Harlem by a group of young men who, while yelling “terrorist” and “Osama,” kicked and beat Singh, fracturing his jaw and dislodging some of his teeth.

Paddington Bear is a much-loved children’s character from deepest, darkest Peru. He’s also an illegal immigrant. According to Michael Bond’s classic books, Paddington is an illegal stowaway who entered Britain with no partner or means of supporting himself, then adopted a different identity before staying in the UK indefinitely.

This month, thousands of African migrants to Israel, many seeking asylum, marched in Tel Aviv to demand more rights and protections from the Israeli government. In an email interview, Dov Waxman, associate professor of political science at Baruch College and at the Graduate Center of the City University of New York (CUNY), as well as the co-director of the Middle East Center for Peace, Culture and Development at Northeastern University, explained Israel’s immigration policy.

The government has been urged to limit consular services for dual citizens who travel on a foreign passport or who live outside Canada for prolonged periods, a report said Tuesday. The proposal was described in briefing books prepared for Foreign Affairs Minister John Baird and Trade Minister Ed Fast, and cited by the daily Globe and Mail.

India moved Friday to oust a U.S. diplomat from the American Embassy here, hours after the departure from the United States of an Indian consular officer who was asked to leave after she was indicted on charges of visa fraud. What appeared to be a tit-for-tat action may lead to a calming of the month-long dispute that has roiled U.S.-Indian relations.