Why are Personnel Security Investigations (PSIs) and security clearances necessary?
Personnel Security Investigations (PSIs) and security clearances are key elements in protecting the security of the United States. Personnel Security Investigations (PSIs) and security clearances are required to counter the threats that may stem from: • Foreign intelligence services; • Organizations or people who wish to overthrow or undermine the United States government through unconstitutional means, violent acts, or other terrorist group activities; And individuals who: • May be susceptible to pressure or improper influence. • Have been dishonest or demonstrated a lack of integrity that has caused others to doubt their reliability.