In what area did mahan believed that the us was unprepared

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

Which of the following allowed the government to stop a foreigner from becoming a citizen, presidential power to throw anyone he wanted out of the u.s. and that it was a crime to criticize the government? the alien and sedition act the xyz affair the 12th amendment marbury v madison

During wwi, literacy tests were used to control immigration, which marked a return of what type of ideology in some americans?