>US to hand over ICANN to UN
ICANN is an independent organization, and DNS will not be controlled by the UN. This is actually a fear-mongering narrative being repeated by American conservative news sites. Obama's administration promised control of DNS would not be handed over to the UN, which would make it susceptible to political pressure from e.g. authoritarian governments.
The plan is for ICANN, a non-profit company located in California, to work with the private sector to steward DNS.