From Malaysia to the Philippines, what are the most serious terror threats in Southeast Asia 20 years after 9/11?

A senior Malaysian counterterrorism official has warned that religious and ethnically motivated violent extremism is the most significant terrorism -related danger the country faces, while Indonesia, the Philippines and Singapore are most concerned by groups linked to al-Qaeda and Islamic State (Isis) .

The comments from officials and analysts came as This Week in Asia asked security agencies in the region about the most serious terror threats they faced 20 years after Sept 11.