Weekend Edition Sunday

In 1961, desperate to increase its labor force, West Germany signed an employment agreement with Turkey and launched a wave of immigration that continues to have repercussions today.

Now, after years of being treated as second-class citizens in Europe's economic powerhouse, large numbers of Turks — descendants of the first wave of immigrants — are returning to Turkey.

In A Strange Land

A cruise run by the Aquarium of the Pacific in Long Beach, Calif., sounds like a picturesque summer outing. But the Urban Ocean boat cruise highlights the juxtaposition of a powerful port with a fragile ecosystem: You're just as likely to see trash as you are to see marine life.

In front of the aquarium, school kids are running around, eager to go inside and pet the sharks and see the penguins. There's also a marina, where a small passenger boat called the Cristina shoves off from sunny Shoreline Aquatic Park.

Planet Money's Zoe Chace reports that the immigration overhaul bill proposes doubling the number of skilled-worker visas available to companies that want to hire foreign workers. But the application process is a challenge in itself. (This piece initially aired May 2, 2013, on Morning Edition.)

Our perspectives on personal space — the distance we keep between the person in front of us at an ATM, the way we subdivide the area of an elevator — are often heavily influenced by the norms of the places we inhabit.

Jerry Seinfeld once focused an episode of his sitcom on the concept of personal space, giving us a new term: the "close talker."

President Obama traveled to Central America this weekend, to Mexico and then to Costa Rica, where he met with other leaders from the region. Host Rachel Martin speaks with Eric Olson of the Woodrow Wilson International Center for Scholars, who attended the meeting.