Watching the watchers: European border agency under fire

Migrants arrive aboard a dinghy accompanied by a Frontex vessel at the village of Skala Sikaminias, on the Greek island of Lesbos (Michael Varaklas/AP)

The European Union’s border and coast guard has come under pressure following a series of allegations that it was involved in illegal pushbacks of migrants.

Frontex is an increasingly powerful agency that monitors the 27-nation bloc’s external borders.