The revised ban allows entry to citizens of Iraq, but continues to block citizens of six other Muslim majority nations.
Data on violent incidents in the US reveal that our focus on Islamist extremism since 9/11 may be misguided.
Data since 1950s show Americans have always been wary of refugees. A public opinion expert explains current attitudes toward Syrian refugees and what it means for building consensus on policy.
The Trump administration may do well to make a friend of the federal bureaucracy it's so intent on gutting, according to an expert who studies the role of civil servants in government.
Ban or no ban, finding a Syrian refugee in the U.S. isn't easy.
In a crisis, governments often act just to be seen to be doing something. The difference with what Trump's doing is that there is no crisis.
Our panel of experts examines whether immigration leads to more crime using data from across 200 metropolitan areas and 20 years of research.
Gulf countries have a history of using migrants' rights as a tool in their geopolitical strategy.
Trump has pointed the finger at Obama for creating the list of seven countries in his new travel ban.
We must know people as they would like to be known, not as some dominant power has decided we shall know them.
For decades, the US has used international education to support democracy and positive relations with countries. For most of the 1970s, Iran sent more students to America than any other country.
This roundup from our archives explains some of the major conflicts unfolding in the seven countries singled out by Trump's executive order.