WASHINGTON, April 15 (Reuters) - Meta (META, opens new tab
 CEO Mark Zuckerberg considered spinning off popular photo-sharing app Instagram in 2018 over concerns about the growing risk of antitrust scrutiny, according to a document shown at a trial in Washington on Tuesday.
The document was shown during Zuckerberg's second day of testimony at the high-stakes trial, in which the U.S. Federal Trade Commission is seeking to unwind Meta's acquisitions of prized assets Instagram and WhatsApp.