Frustrations have been boiling over into violence on the Greek border with Macedonia. Along the razor wire fence, refugees in the Greek town of Idomeni have been stranded with no information about when — or if — the border would ever open. In April, some made a desperate dash for the other side. They were met with Macedonian stun grenades, tear gas and rubber bullets. Three hundred were injured, including women and children. Earlier this month, refugees pushed an abandoned train car toward the border, only to be confronted this time by Greek police firing stun grenades and tear gas.