The real "gem" in this story is right here:  '"It could have been a person of any nationality. It could have even been blood products. A lot of blood products used in the United States in the 1970s actually came from Haiti," he (Michael Worobey) explained.'  That's quite a statement, supported by "Geographically there is an unmistakable signal that this lineage did diversify in the Caribbean before it moved into the U.S." 

So it turns out that the official narrative for AIDS is not only completely wrong, but prejudicially so.  DNA sequencing has come a long way---It's going to be worth paying attention to the way this story develops.