The department of homeland security was created to -keep noncitizens from entering the united states. -protect the united states from terrorist attacks. -make us citizens more secure in their homes. =strengthen us military presence overseas

The Department of Homeland Security was created to protect the United States from terrorist attacks.

It is responsible for the public security. Its main activities involve anti-terrosrism., border security, migration, and customs, as well as cybersecurity and disaster prevention" 
The Department was created after the September 11 attacks, so it is the newest department. 

answer: to communicate with people on the other side.

explanation:

but its not smart to do because the gateway on an ouija board is not gaurded