Gaming platforms and social media platforms will be monitored for extremist content as part of efforts to stop people being radicalised online.The federal budget will include $74 million of funding for a national centre for online counter-terrorism work, to be jointly run by spy agency ASIO and federal police.The program will have specialist counter-terror investigators and analysts monitor high-risk online spaces.Home Affairs Minister Tony Burke said the measures would be able to counter growing online threats."This feature of young people being radicalised fast online is real and the agencies, as is evident in those those charges that have been brought...