There are good arguments for fixing things at home before we try to fix things abroad. But we can’t ignore looming threats that would disrupt our homeland more than most people realize. The Wall Street Journal editorial board has the scoop:

House Intelligence Committee Chairman Mike Turner created a stir in Washington [last] week when he warned of a new security threat, and credit the Ohio Republican for doing a public service. America is sleepwalking into a new age of military and homeland vulnerability, and political leaders need to tell the public the uncomfortable truth.

Biden Administration leaks to the press say the threat concerns a Russian program that would target U.S. satellites, perhaps with a nuclear explosion. Satellites are vital to nearly every aspect of modern American life and commerce, as well as national defense. Destroying those would send the U.S. into a communications blackout with untold damage.

Domestic politics, as usual, plays heavily in these discussions.

Some GOP critics say Mr. Turner is sounding an alarm about Russia to drum up more support in Congress to pass the weapons package for Ukraine. But the Russian threat Mr. Turner cites either exists or it doesn’t. He asked President Biden to declassify information on the threat so the public can judge for itself, and that’s a good idea. That would be more reassuring than relying on those who told us that the Afghan government wouldn’t fall if the U.S. withdrew its troops from the country.

“The military threat in space is real and growing,” says the Journal. “Russia and China are working hard to develop space weapons.” That means the U.S. must be ready for what some are calling “stunning” advances in Chinese technology in particular.

The unhappy reality is that U.S. satellites are large and vulnerable to attack. Military officials have known this for some time, and their strategy is dispersal and hardening. Details are classified, but in general terms this means relying on more and smaller satellites and making each one better able to withstand an enemy’s anti-satellite lasers or blast weapons.

This takes money, and the Senate’s fiscal 2024 defense spending bill increases space investments by 9%. The bill funds 15 national-security space launches this year, five more than in 2023, plus money for a variety of space monitoring and satellite protection purposes. If Congress fails to pass the bill and instead lapses into a continuing resolution, the Space Force would lose $2.8 billion in spending. That’s nearly a tenth of its budget.

The Journal concludes:

Space has already become the next theater for military competition—the new battlefield “high ground,” as strategists have long predicted. The only question is whether the U.S. is going to cede dominance in space to our adversaries, or treat it like we would any other military theater. The risks of space vulnerability are worse than losing a land battle because the U.S. homeland is threatened.

Political complacency about space war is part of a larger refusal by American elites to educate the public about U.S. vulnerability to new military technologies. The liberal internationalists in the Biden Administration don’t want to highlight growing threats on their watch—and in any case think they can be meliorated with treaties. The GOP’s isolationist wing wants to spend less on defense and cede global spheres of influence to Russia, China and Iran.

Thanks to Mike Turner for trying to wake up the sleepwalkers.

Wall Street Journal subscribers can read the whole thing here.