Hemoglobin is an iron-containing protein found in the blood of nearly all vertebrates and many invertebrates. It transports oxygen from the lungs or gills of an animal to the tissues. Four polypeptide chains, each wrapped in a specific way around its own heme group, make up the hemoglobin molecule.
Correction Appended. Alger Hiss, the erudite diplomat and Harvard-trained government lawyer who was convicted of perjury in an espionage case that became one of the great riddles of the Cold War, died yesterday at Lenox Hill Hospital in New York City. He was 92 and lived in Manhattan.
By Jon Greenberg on Friday, January 10th, 2014 at 10:00 a.m. The federal criminal charges filed against National Security Agency leaker Edward Snowden make it seven times that the Obama administration has used the Espionage Act against government workers who shared information with the press.