Ted Robbins

Some employers around the nation have been using E-Verify to check the immigration status of employees for years. Operated by the Department of Homeland Security, the online system is designed to make it harder to hire unauthorized workers — and harder for those workers to find jobs.

While participation in the program has been voluntary since 1996, the immigration bill now in the Senate would make E-Verify mandatory.

Nearly half the people now in the U.S. illegally didn't climb walls, wade across the Rio Grande or trek through the desert to get here. They arrived legally, with tourist or student visas. And when those visas expired, they just never left.

Like the rest of the 11 million undocumented people in the United States, they are part of the underground economy and the government doesn't know where they are. The Senate immigration bill now before Congress tries to address this problem — though not as richly as it does border security.

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The U.S. Immigration and Customs Enforcement Agency has released hundreds of immigration detainees ahead of Friday's sequester deadline. The decision was made to help bring down the agency's budget, in light of the automatic spending cuts. ICE officials are getting both praise and a lot of heat for the unusual move. NPR's Ted Robbins has the story.

In the back and forth between Congress and the White House over immigration, both sides seem to agree that people now in the U.S. illegally should wait at "the back of the line" for legal residency — meaning no green card until all other immigrants get theirs.

But that presents a problem, because the wait for a green card can take decades.

Maria has been waiting in line with her husband for 16 years and counting for what the government calls a priority date for legal residency. Because she is in the U.S. without documents, Maria asked NPR to use only her first name.

The man who brought Showtime to Los Angeles has died. Under Lakers owner Jerry Buss, the team won 10 NBA championships. His players loved him, and his business smarts helped market the team in ways the league had never seen before. Buss had been hospitalized recently and was undergoing treatment for cancer. He was 80 years old.

Half of all tomatoes eaten in the U.S. come from Mexico, and tomato growers in Florida aren't happy about that. In fact, they're willing to risk a trade war to reverse the trend.

At JC Distributing In Nogales, Ariz., one misstep and you're likely to get knocked over by a pallet full of produce. Forklifts crisscross each other carrying peppers, squash and especially tomatoes from trucks backed into the warehouse loading dock.

"This is a Mexican truck being unloaded," says JC President Jaime Chamberlain. "He's just waiting for his paperwork to get back."

Since the mid-1980s, the U.S. Border Patrol has quintupled in size — growing from about 4,000 to more than 20,000 agents.

The government has constructed some 700 miles of fencing and vehicle barriers. It has placed thousands of ground sensors, lights, radar towers and cameras along the border. And Customs and Border Protection is now flying drones and helicopters to locate smuggles and rescue stranded immigrants.

So here's the question: Is the Southwest border secure?