In 200 to 400 words discuss how fusion centers have changed in the United States

In 200 to 400 words discuss how fusion centers have changed in the United States from post 9/11 to today and how fusion centers play a role in counterterrorism strategies.
As a part of this assignment, you are required to read the web page Appendix 1 – Establishing a National Integrated Network of State and Major Urban Area Fusion Centers, which was originally published by the Bush administration in 2007 (updated in 2012) and outlines the initial role of fusion centers in the United States. This will provide the historical context and background information for your essay. Review the updated National Strategy for Information Sharing and Safeguarding document.