The EM Drive does not work. That is just misreporting based upon misreporting, based upon misreporting. My old mentor was involved in that work from day one, and I know Sonny White who lead it. It is all over with. Was a complete failure, as was the even more heavily funded version in China. (This is actually my field. I do epistemological analysis in philosophy of technology.)
The recent stuff in negative mass wasn't black holes, which we don't want to create 'cause they might eat the Earth, which would be very inconvenient for everyone I know. However, negative mass is the stuff necessary to create both warp drives and wormholes, and that is what was just created this last year. Was published by an all-star team in a top peer review journal and is now turning the advanced propulsion field on its ear. Likewise, the team doing Mach Effect research at Cal. State Fullerton has just landed some NIAC (NASA) funding this last year. It's a brave new world.
https://news.wsu.edu/2017/04/10/negative-mass-created-at-wsu/
PS- Physical Review Letters has been the number one peer review journal in physics since Einstein moved from Germany to the USA. There is no better place to publish this kind of work. This is a true turning point in modern physics that relates entirely to building warp drives and wormhole generators.