Simplify the following text for a Grade 15 native English-speaking person.
Original: CSIS ( pronounced \/ Ë siË sÉ s \/ ) is responsible to Parliament through the Minister of Public Safety , but is also overseen by the Federal Court system , the Inspector General of Canada , and the Security Intelligence Review Committee .
Simplified: CSIS is responsible to Parliament through the Minister of Public Safety , but is also overseen by the Federal Court system , the Inspector General of CSIS , and the Security Intelligence Review Committee .