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The European Union flags waving in Brussels, Belgium. Photo: Dursun Aydemir/Anadolu Agency/Getty Images

Comments from experts and tech leaders at this year's South by Southwest festival were a reminder that Europe's aggressive competition enforcement policies are viewed very differently on either side of the Atlantic.

Why it matters: Large tech companies like Facebook and Google are under increased scrutiny in the U.S., but the European Union has long been much more aggressive in curbing what it sees as anti-competitive behaviors.

The U.S. view: "The Europeans go after big successful companies... using very ambiguous anti-competitive laws," said Consumer Technology Association chief Gary Shapiro during a panel.

The E.U. view: "There’s nothing wrong with being large," said Julie Brill, Microsoft deputy general counsel and former FTC Commissioner, during a different panel. She added that the problem is when a large marketshare is "used in inappropriate ways and used to further benefit the monopolist."

"We’re not in a beauty contest of being more aggressive than another," echoed Damien Levie, who heads trade and agriculture at the E.U.'s American embassy. "We look at conduct cases of what we call abuse of dominant position.”

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Why it matters: Some Democrats, including Sens. Tim Kaine (D-Va.) and Chris Murphy (D-Conn.) and Rep. Ro Khanna (D-Calif.), have criticized the Biden administration for the strike and demanded a briefing.

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Why it matters: The authorization of a third coronavirus vaccine in the U.S. will help speed up the vaccine rollout across the country, especially since the J&J shot only requires one dose as opposed to Moderna and Pfizer-BioNTech's two-shot vaccines.

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