He would like to change the way people choose to define the word "American"
Operation Pied Piper was the name of the plan to relocate children to the English countryside during World War II. Millions of people, most of them children, were shipped to rural areas in Britain as well as overseas to Canada, South Africa, Australia, New Zealand, and the United States, where the risk of bombing attacks was low or non-existent.
Gatsby is nervous about meeting Daisy at Nick's place. He is panicking and Nick tells him to stop acting like a little boy.
When Harry opens his blanket, Ginny notices the holes spell something out: “Dad. Help. Godric’s Hollow. 31/10/81.” Harry then realizes that Albus has sent him a message telling where he is in time.