Research one domestic terrorist attack and draft a response that includes the following issues.

Describe the act, how it occurred, and the outcome.
Describe how the United States responded. Was it effective? Why, or why not?
Describe how the United States can learn from this incident to mitigate future threats that may be similar.
What specific federal government-level planning documents, policies, procedures, and guidelines should be used? Support your response with external federal government resources.