The Homeland Security Digital Library (HSDL) is the nation's premier research collection for open-source resources related to homeland security policy, strategy and organizational management. They have been commemorating the 10 year anniversary of 9/11 through a series of blog posts. This week post highlights some of the memorials and observances for the ten year anniversary and it can be found at https://www.hsdl.org/hslog/?q=node/6342