Survivors recount harrowing experience after migrant boat sinks under Greek coast guard's watch.

A Syrian teenager who survived the migrant shipwreck off the coast of Greece was reunited with his brother, who had traveled from the Netherlands to search for him. The shipwreck killed at least 78 people, and hundreds more are feared dead. The incident has sparked arrests, violent protests, and questions about authorities' failure to act or find a long-term solution to the issue. Greek authorities were criticized for not acting to rescue the migrants, even though a coast guard vessel escorted the trawler for hours and watched as it sank in minutes.