Came across this bit of information on Galaxyzoo. Apparently, the old school thought that DRAGNs are only associated with elliptical galaxies may be wrong. Many spiral galaxy DRAGNs, or SDRAGN's candidates have been discovered and more research is being done. Only time will tell but I found it interesting.

Have a look here https://blog.galaxyzoo.org/2016/12/2...e-be-s-dragns/