Between 1963 and 1964, The Beatles blew up to become one of the most internationally renowned bands in history. Though images of the screaming fans and the four musicians' swooping haircuts are part of pop culture, a new book shows that time period through Paul McCartney's perspective. 1964: Eyes of the Storm features photographs the guitarist took through many of those international performances. As McCartney tells NPR's Steve Inskeep, the band's first visit to the U.S. came amidst a period of charged political change.