KASSEL, Germany (Reuters) - A German man has confessed in court to killing and eating a willing victim, saying it had felt like a religious act to eat human flesh. Offering a full account of the killing that has gained him worldwide notoriety as "The Cannibal of Rotenburg", Armin Meiwes said there were "hundreds, thousands" of people seeking to fulfil their desires to eat humans or be eaten via Internet adverts in forums called "Cannibal Cafe," "Guy Cannibals" and "Torturenet". The trial of Meiwes, 42, started on Wednesday in the central German city of Kassel, in a case that has...