Why was it vital for workers to have Labor Unions and Labor Laws?

The newly created nazi ghettos were built where? in traditionally jewish neighborhoods. in rural areas. in poor urban areas. in isolated areas to prevent knowledge of the ghettos. primarily in germany.

Mee why did the government control the news and information americans received about the war? to eliminate propaganda that unfairly targeted immigrants to influence public opinion in support of the war effort to inform americans about troop movements and major battles

Which situation would be more likely to occur in the modern era than in earlier periods of human history