A national convention of the Little People of America ...... has been meeting in the Twin Cities this week. During this annual gathering of a group representing people who are four foot ten or less, a variety of business and leisure activities have been planned for the 13 hundred convention goers. One of the features of the annual event is the LPA expo. There, vendors display products and services designed to fit the needs of little people...... Minnesota Public Radio's Brandt williams reports: