Just an FYI.
“. . . Mrs. Obama will visit the downtown Barnes & Noble store located at 555 12 St. NW, at E St. On Friday, June 8th, those wishing to attend the event must purchase a copy of the First Lady’s book at the location (for $19.20) and leave it at the store, according to the employee. At the same time, customers must also submit their social security number and show an official photo ID (driver’s license, passport) to a Secret Service agent, and they will be issued a wristband to attend the First Lady’s event on June 12. . .” (Source)