The head of a far-left Greek militant group that killed four American officials and 19 others has been released from a maximum-security prison.

The mastermind behind the now-defunct Greek militant organization November 17, responsible for a decades-long campaign of assassinations targeting...

The mastermind of defunct Greek gurerilla group November 17, which carried out a 27-year campaign of assassinations, has been released from jail, two police sources said on…