2009 U.S. state dinner security breaches
On November 24, 2009, Michaele () and Tareq Salahi (), a married couple from Virginia, and Carlos Allen (from the District of Columbia), attended a White House state dinner for Indian Prime Minister Manmohan Singh, as uninvited guests. The Salahis and Allen arrived separately and did not appear to have colluded in their efforts.
Source: Wikipedia — 2009 U.S. state dinner security breaches (CC BY-SA 4.0)