Welcome to the NewsHour.

The Trump administration today announced an immediate pause on the leases for five large-scale

offshore wind farms off the East Coast, citing concerns about national security.

The Interior Department provided few details, but said the Pentagon believed the turbines

could obscure and confuse radar signals.

This is just the latest move by the White House, taking aim at wind power.

At least one of the projects halted today was already partially operating.

Our science correspondent, Miles O'Brien, has been reporting on these projects

and joins us now with the details.

Miles, what is the reaction you've been hearing from the states,

from the companies about this move today? William, it's a little bit of a groundhog day effect.

One more time, sort of the same arguments, and there's a sense of resignation and frankly,

quite a bit of sadness. There's a huge amount of money that's being lost, even as we speak.

And this idea of putting wind offshore to feed the cities, the population centers along the

East Coast.

First took root about 25 years ago, really began going in earnest about 10 years ago, went through layer after layer of approval and permitting process,

which included the Federal Aviation Administration and the Department of Defense to determine if, in fact, these turbines might pose a threat to radar and the ability for radar to track aircraft.

Ultimately, it passed all of those tests.

The permits were granted.

And now billions have been spent to put these turbines in the water and in many cases already

connect them to the grid.

And so the idea that after all that, it might come to not, leads to a lot of

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