Briefly describe the events that led up to the events of September 11th. What agencies were involved in the subsequent investigation and what lessons were learned?

In the Active Learning threaded discussion area, using materials assigned in this module, respond to the stated question, including any relevance to and implications on the field of homeland security and defense. These discussions are intended to create thought-provoking, lively, and respectful discussions. Remarks can include your opinion(s), but must be based on experience, research, and/or prior learning.
no plagiarism
turn it in required