The Beatles' presentation as Sgt. Pepper's band resonated at a time when many young people in the UK and the US were seeking to redefine their own identity and were drawn to communities that espoused the transformational power of mind-altering drugs. In the Haight-Ashbury district of San Francisco, the recognised centre of the counterculture, "Sgt. Pepper" was viewed as a "code for life", according to music journalist Alan Clayson, with street people such as the Merry Band of Pranksters offering "Beatle readings". American social activist Abbie Hoffman credited the album as his inspiration for staging the attempted levitation of the Pentagon during the Mobe's anti-Vietnam War rally in October 1967. The Byrds' David Crosby later expressed surprise that by 1970 the album's powerful sentiments had not been enough to stop the Vietnam War.