Let me restate that: William Barr is opposed to certain, very narrow subsets of domestic surveillance. Specifically, Barr doesn’t think the government should have spied on Trump and his campaign staff, if that’s what actually happened, which Barr doesn’t actually seem to know.
But if you’re literally anyone else, domestic surveillance is just another name for national security, whether you’re a random Verizon customer or one of the world’s most useful websites.
The Wikimedia Foundation sued the federal government over domestic surveillance back in 2015. The suit lives on four years later …