John Burnett

With border security getting unprecedented attention and resources, the mood at an annual border security expo was surprisingly upbeat. For the first time, some are even talking about the possibility of completely stopping illegal crossings from Mexico.

A double murder allegedly committed in San Antonio by an immigrant in the country illegally is gaining attention. President Trump has pointed to similar crimes as justification for more deportations.

On Monday, Trump administration officials released a list of cases in which local jails released non-citizens rather than turning them over to federal authorities.

On Friday, Customs and Border Protection released a description of what they want the wall to look like as a guide for contractors. It has to be at least 18 feet high.

Immigrants and human rights advocates say federal authorities under President Trump are discouraging asylum requests and turning away immigrants fleeing persecution.

Donald Trump pinatas and deportees from the U.S. are some of the people and things you'll find in the Mexican border city of Reynosa.

Officials say Trump's tough stance has led to fewer apprehensions at the border. But amid heightened threats of family separation and terrorization, some think the journey is still worth the risks.

President Trump has said immigration agents are singling out "bad ones" for deportation. So some Houstonians are asking why they took Piro Garcia, a Guatemalan who became an immigrant success story.

We asked the audience to send us questions about the U.S.-Mexico border. Listeners wanted to know about the role of law enforcement and what it takes to cross the border legally.

More than 300 eminent domain lawsuits were filed after previous efforts to build barriers along the U.S.-Mexico border. Now more lawsuits are expected as President Trump continues the project.

U.S. Immigration and Customs Enforcement agents continued to carry out raids on Monday. Immigrant advocates say this represents a clear departure from the previous administration, but ICE officials have said these are routine enforcement actions.

Immigration raids in California, Virginia, North Carolina, Georgia, Kansas, New York and Texas have immigrant rights groups saying federal officials are cracking down, but ICE says it's not unusual.

Republican senators have introduced a bill to reduce legal immigration numbers to the U.S. With the ascendance of Trump, an anti-immigrant faction has moved from the fringe into the mainstream.

A fraction of people who seek refugee status in the U.S. are approved. Less than one-fourth of 1 percent of refugees on the planet are approved to come here. Leon Rodriguez, former head of Department of Homeland Security's Citizenship and Immigration Services, the federal agency that vets refugees, says agents already do "extreme vetting."

The latest news on how President Donald Trump's ban on refugees from seven Muslim-majority countries is being carried out nationwide.

A judge temporarily stayed deportations after President Trump signed an executive order preventing refugees from entering the country temporarily.

Trump's war on sanctuary cities is playing out in Austin, Texas. The sheriff vowed to defy federal demand to turn over immigrants in the country illegally. The governor is threatening to remove her.

Some point to Canada's immigration system as a model for U.S. reform. Canada is nearly a quarter foreign-born, yet it doesn't seem to wrestle with anti-immigrant nativism that has erupted in the U.S.

President Trump announced Wednesday executive actions that will reshape U.S. immigration policy, including plans for the wall, actions against sanctuary cities and new border patrol measures.

"Build that wall" became a mantra during Donald Trump's presidential campaign. But costs, logistics and geography make building such a wall more complicated than many realize.