Answer: 1, 4, 5 and 6
Explanation: The Department of Homeland Security (DHS) is a cabinet department of the U.S. federal government with responsibilities in public security. Its stated missions involve anti-terrorism, border security, immigration and customs, cyber security, and disaster prevention and management. It was created in November 2002 in response to the september 11(9/11) attacks.
1. Border and transportation security: U.S. Customs and Border Protection is the agency that enforces U.S. laws along its international borders (air, land, and sea) and ports of entry
2. Emergency preparedness and response: Federal Emergency Management Agency oversees the federal government's response to natural disasters like earthquakes, hurricanes, tornadoes, floods, forest fires.
3. Directorate for Science and Technology responsible for research and development
4. Information analysis and infrastructure protection: National Infrastructure Advisory Council advises on security of public and private information systems and Infrastructure
