The root DNS of the internet has been run by National Telecommunications and Information Administration, a division of of the US Government though in truth they contracted out this responsibility to the non-profit Internet Corporation for Assigned Names and Numbers and their Internet Assigned Numbers Authority.   This will not really change much in the way that the root DNS has handled but is more a handover of official responsibility as the US Government hands off it's past role as overseer of the internet.  If ICANN and IANA are unfamiliar to you then pop over to The Register for a very brief overview of what they actually do.

"The US Department of Commerce is ready to leave the keys to the internet's worldwide DNS system in the hands of non-profit net overseer ICANN."

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