Who determines when one person's right to expression must give way to another's sense of propriety? ABC News correspondent John Stossel looks at growing constraints on free speech made in the interest of protecting the public from offense.

Though many of the sexual practices of the Ancient Greeks and Romans are known and accepted today, the meanings associated with these acts were often utterly different from our own. Focusing on the cultures of the Mediterranean from 800 BCE to 350 CE, 'A Cultural History of Sexuality in the Classical World' covers sexual practices, feelings and ideas from the time of Homer to the transformation of the Roman Empire.