I believe it was because the government was afraid that they might be spies for Japan, so they thought it was safer to keep them in one place so it would be easier to keep an eye on them. It also stemmed from racism due to the attack on Pearl Harbor and the U.S. fighting against the Japanese in the Pacific.
Answer:
"Spain" decided to gamble on Christopher Columbus new and radical route to the east by sailing west
Explanation:
The kingdom of Spain had decided to gamble on the long sail which will move across the unknown ocean. They did to get back the gold as well as spices, they have also been promised the Columbus that they will 10% of the profit, along with the governorship over the newfound lands. and they have also famed that it would go with the new title Admiral of the Ocean sea.