What is meant by the 'The right to freedom of expression'?​

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.