The concerns stem from TikTok's ownership by China-based ByteDance, since China's national security laws can compel firms based there to hand over information.
The remarks put to rest mounting pressure from Congress to tell the public about what these three balloons were, and whether they posed an ongoing threat.
Retailers CVS Health, Walgreens and Kroger have announced initiatives to provide clinical trial enrollment and follow-up services in their pharmacy clinics.
The Supreme Court had been set to hear a case from Republican lawyers seeking to keep Title 42, the Trump-era policy that allows quick deportations of migrants.
If the lifesaving nasal spray Narcan is approved for over-the-counter use, people could buy it in supermarkets, convenience stores or even vending machines.
Treasury will exhaust its emergency measures sometime between July and September unless Congress raises the debt ceiling, the Congressional Budget Office says.
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