From watching the video, it appears that the second stage ignited before separation. Hard to tell without being able to go frame by frame.
BTW, Folks, this is rocket science & engineering. Leave off the snarky political comments for a while.
Of course it is “Tax Dollars” - NASA HIRED SpaceX to resupply the ISS, rather than HIRE another commercial company or the RUSSIANS.
With the exception of the Rutan/Allen SpaceShipOne to 100+km, ALL space exploration has been done with “Tax Dollars”.
Give credit where credit is due. SpaceX spent a ton of Elon Musk’s and other venture capitalist’s money to get this program started BEFORE your tax dollars were involved. So have a number of other space capitalists.
I grew up watching the early Redstone and Atlas rocket failures. Russia lost a bunch that we never heard about. The French Ariane has failed.
http://listosaur.com/science-a-technology/10-spectacular-failures-of-unmanned-rocket-launches/
I don’t see any signs of the second stage igniting before separation. Instead, the upper part of the vehicle appears to be rapidly venting a gas for about 8 seconds before the rocket broke up. My wild guest is the second stage’s liquid oxygen tank ruptured.
Sure, sorry, I'm in a bad mood.
Keep trying Mr. Musk.
Thanks for posting that.
“I grew up watching the early Redstone and Atlas rocket failures.”
And the Vanguard.