How does the National Strategy for Homeland Security (NSHS) apply to state governments and emergency managers?

How does the National Strategy for Homeland Security (NSHS) apply to state governments and emergency managers? Explain.
What challenges and barriers exist with regard to state homeland security strategy that are not present at the federal level? Explain.
Specifically, how are local-level policies developed using state homeland security strategy? Explain.
What types of policies would need to be addressed to effectively respond to a terrorist attack on your city’s critical infrastructure? Explain.