David,

Intervention is probably not a good word choice, it has connotations that are not helpful. The appropriate word is assistance, but this gets tricky due to the endemic corruption in the country. A lot of the violence is politically motivated between the two main political parties. How to do you assist in a way that targets the growing extremism without supporting one of the political parties? UK, US, China, India, and others have been providing various forms of assistance over the years. Most of it focused on economic development. Bangladesh security forces, to include the RAB which you discussed, have demonstrated some proficiency in getting after the terrorist threat. Unfortunately,they often conflate getting after terrorists and getting after political opponents as the same thing , which creates a tension that limits how much assistance the West will provide.

All that said, standing by and potentially allowing radical Islam to grow (it has always been there), potentially exponentially, threatens our economic (regional instability) and security interests. I'm not proposing any solutions in this or the previous post, but rather pointing out the potential risk. A risk best dealt with sooner rather than later. Cheers!