Frederick Douglass changed his name in order to escape the identity that given by his old master when he's still a slave.
Back then, his names had several similarities with pretty famous figure and he did not want to convey the false mistakes that they're in any way related from one another.
I believe the answer is: double-blind experiment
In double blind experiments, the subjects that receive the treatment is remained unknown by both the researchers and the subjects until the experiment is finished. The main purpose of double-blind experiment it eliminate the bias of perception that might exist among researchers.
Answer:
to defend human rights in other countries
to take side of its strong economic partners
to protect democracy broad
Explanation:
Both served immigrants of mostly European descent.
Both served immigrants of mostly Asian descent.
Both often detained immigrants for weeks or months.
Both required that immigrants pass health inspections.
