No gallery was provided, but anyways -
Those extermination camps were in close proximity to railway systems and ghettos (enclosed community of Jews). For the goal to be fulfilled, the Nazis had to put the Jews in these ghettos, so, they could later transport them (via train) to the camps.
A.
He thought it was unconstitutional for the government to make an uncharted purchase or something similar to that.
Peaceful protest, Complaining to the US Supreme Court, and showing how they were just normal people by helping the country advance in technology, (Katherine Goble, etc)
They had to deal with segregation,
Discrimination in the workplace, limited jobs due to rascism,
and terrible education.
To mobilize voters
To announce campaigns
To discuss issues and events