4. why did people have a fear of foreigners during the war?

The United States has long been a destination for immigrants seeking a better life. Yet, newcomers haven't always been welcomed with open arms.

Throughout the nation's history, immigrants have consistently been blamed for societal problems, commonly viewed with suspicion and fear and accused of lowering the quality of life for established residents.

It's an issue playing out in the 2016 presidential election, with calls from Republican candidate Donald Trump to deport large numbers of undocumented residents, build a border wall and crack down on Muslim communities.

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.