In what the U.N. human rights chief called an unprecedented show of support to empower the physically and mentally impaired, 80 countries signed a U.N. convention enshrining the rights of the world's 650 million disabled. The United Nations held a ceremony Friday on the first day the convention opened for signatures and not only did 80 countries and a representative of the European Union sign it but Jamaica announced that it had also ratified the convention. That means only 19 more ratifications are needed before the convention comes into force...