Former Florida Gov. Jeb Bush defended immigrants and weaved together ideas about immigration, education and the plight of youths in a speech Thursday night at the Times-Union Center for the Performing Arts. -snip- Bush said a population pyramid with more young people at its base is important because the youth support the elderly. He explained that in China the pyramid is becoming inverted because they are trying to control population and as a result the elderly are going to outnumber the young. He said immigrants in the United States are usually young and if they were allowed to stay legally...