German scientists were concerned about nazi restrictions on uranium sales because
uranium would not be available for industrial research.
uranium was important to german missile programs.
uranium paid for german scientific research.
uranium could be used in research on atomic weapons.

German scientists were concerned about Nazi restrictions on uranium sales because uranium could be used in research on atomic weapons, and the Nazi government was striving to create new weapons of mass destruction. During World War II, the United States started the Manhattan Project and the Nazi government developed the Uranverein or Uranium Club. Both enterprises aimed to create atomic weapons, knowing the first one with positive results would give the victory to its country. Thus, now we know only the American one was successful.

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.