For many families, Memorial Day means a getaway trip, barbeques, the unofficial start of summer. But Memorial Day means much more than that – it is an opportunity to honor those Americans that have laid down their lives in defense of the freedoms we enjoy every day. That can be a hard subject to explain to kids. Throughout the world, the poppy flower has come to symbolize those sacrifices. This weekend, more than 645,000 poppies filling a clear wall stretching 133 feet long and over 8 feet tall will be on display on the National Mall in Washington, D...