So much more than a decoration or a national logo, the American flag represents the American ideals espoused in our founding document: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness." Honoring and respecting the flag is how we express our unending support for these ideas.
A generation ago, civics classes used to be ubiquitous in public schools. Now, as more and more schools teach for standardized tests, the study of the government and the Constitution has fallen by the wayside.
Liberty is the chance to use our gift of life to its fullest advantage. Without basic liberties, mankind is held back from reaching its fullest potential. That is why liberty curtailing forms of government like Communism and Socialism are immoral, or at best, amoral.