Greece

A ship with a multinational crew patrols the waters between Turkey and Greece to protect migrants' lives. They don't always succeed. "We can hear them screaming before we see them," says a volunteer.

The Greek coast guard says at least 21 people, including nine children, died Friday after migrant boats sank in the Aegean Sea.

Macedonia is blocking the path of migrants trying to head north, deeper into Europe. Greece is taking them back from the border to Athens, even as hundreds more arrive at the frontier every day.

NPR's Peter Kenyon sends this postcard from the Greek island of Lesbos, where he met a Syrian woman whose relatives were killed by ISIS, and an Iraqi man who worked with U.S. forces.

The coast guard crew encounters migrants — and smugglers — almost every night in the Aegean Sea, and the numbers are rising rapidly. Some come from as far away as Afghanistan.