Mark Zuckerberg talks about the Orion AR glasses during the Meta Connect conference Wednesday, Sept. 25, 2024, in Menlo Park, Calif. (AP Photo/Godofredo A. Vásquez) WASHINGTON — Meta CEO Mark Zuckerberg sparred Tuesday with a Federal Trade Commission attorney over the meaning of emails the Facebook founder wrote about why he wanted to acquire Instagram, as a historic antitrust trial alleging Meta illegally monopolized the social media market went into its second day. Zuckerberg testified on the second day in the trial that could force Meta to break off Instagram and WhatsApp, startups the tech giant bought more than a…