In the following location: https://www.khanacademy.org/humanities/us-history/rise-to-world-power/us-wwii/a/fdr-and-world-war-ii 

There is a typo under the heading "Foreign Policy in the 1930s" Second Paragraph, second sentence  the phrase "even as" repeats itself:

"Thus, President Franklin Delano Roosevelt's engagement in foreign affairs was limited, even as even as the gathering storm of Japanese and German military aggression dimmed global prospects for peace."

Also, here: https://www.khanacademy.org/humanities/us-history/rise-to-world-power/us-wwii/a/japanese-internment

At the very end of the section "Fred Korematsu v United States (1944)" There is a misspelling of Fred's name with the "s" missing. It reads as... Fred Korematu

Only hoping to help improve, not to be an annoyance!

Thanks,

Drew