Complex sentence: In 2000, he starts the third millennium by apologizing for the Church's sins committed during its history, watches the 9-11 attacks in 2001 with horror and in 2002, addresses American cardinals about the "appalling" Catholic sex abuse scandal.
Split into simpler sentences: In 2000, he starts the third millennium by apologizing for the Church's sins committed during its history. In 2002, he addresses American cardinals about the "appalling" Catholic sex abuse scandal.