The heroic whistleblower and peace activist Daniel Ellsberg is dying.

In an open letter to his friends and supporters, Ellsberg announced that two weeks ago he learned that he has inoperable pancreatic cancer with a prognosis of three to six months. The letter is beautiful and inspiring, but it's also as heart-rending as anything you'll ever read, largely because within it Ellsberg makes it abundantly clear that he has extremely urgent concerns about the world he will soon be leaving behind.

Reading by Tim Foley.