I've been saying this for the past ten years: it's going to happen, and a lot sooner than many could think. Maybe not with this drug, but with another, or a few... it is pretty obvious to these who are up to date with the current state of regenerative sciences.
The fears of welfare are pretty much overstated, to say the least. Keep in mind that for a bussiness it is a lot more beneficial to have a buyer/user for a loooong time to come, instead of raising up a new one from the start again and again. Keep in mind another thing - the birth rate will decrease even more, logically - there's not muh point to reproduce for a genome when it can sustain it's survival for a long time.
Eventually it will be the medicine science that will save white race from extinction. Like always has been - whites outsmart other races, regardless of numbers.
p.s. - this isn't massive news because stuff like this already became a "naturally understandable" thing, like - well yeah, that's how it should be. The big breaking nes in a whole world will be when they will manage to keep a mice alive and young for an indefinite time and most of you reading this will be able to witess that in your lifetime, have no doubt about it.