Complex sentence: ASIO is concerned that Australians fighting jihad may return home to plan terror attacks, with the academic Rodger Shanahan saying that it is Muslim community leaders who have the greatest responsibility for defeating the ideological component that is fuelling the threat to Australian nationals.
Split into simpler sentences: ASIO is concerned that Australians fighting jihad may return home to plan terror attacks. Academic Rodger Shanahan has said that it is Muslim community leaders who have the greatest responsibility for defeating the ideological component that is fuelling the threat to Australian nationals.