For about an hour and a half on Tuesday, Facebook (FB) CEO Mark Zuckerberg faced a barrage of questions before the European Parliament in Brussels.

The results, for any critics of Facebook, were unsatisfying, as the format left the CEO with only a brief time to answer the many questions addressed to him. He left to rousing protests and appeals to the Parliament’s president, Antonio Tajani, to permit more questioning.

Zuckerberg’s visit to Belgium so soon after his Capitol Hill appearances threw the differences between European and American approaches to regulation and politics into relief, in a way that’s rarely seen so sharply. Namely, that Europe expects a far more balanced relationship between corporations and citizens. And its politicians know what they’re talking about.

Brussels brought competence

The lawmakers in Brussels were ready for the CEO. Throughout the questions, they referenced numerous moments from Zuckerberg’s Senate and House visits on April 10 and 11. Manfred Weber, a center-right Member of Parliament from Germany, cited Zuckerberg’s failure to answer Sen. Lindsey Graham’s (R-S.C.) request to name a company that competes with Facebook, to show it is not, in fact, a monopoly.

“Can you convince me not to break up Facebook,” he asked. Weber also asked about the opacity of the Newsfeed algorithm, and mused that perhaps it should be made public.

Guy Verhofstadt, a Belgian Member, took the most aggressive tone of the evening, noting that Facebook has issued 14 apologies, and that the company’s denial that it wasn’t a monopoly was like a car company saying, “We don’t have a monopoly, you can take a train or a plane!”

“The only way I can see to fix it is to have public regulation,” Verhofstadt said. “It’s a bit like the banks [during the financial crisis]. They said: ‘Oh, we’ll regulate ourselves,’ but they didn’t.”

Other Members poked holes in traditional lines in Facebook’s defense or expressed skepticism that it could follow through on its promises to flight election tampering, fake news, and all of its problems. Syed Kamall, a British free-market and conservative Member, who noted users must take some personal responsibility for their Facebook lives, questioned Facebook’s tracking of non-users.

Even if Facebook only keeps 10 days of data on non-users’ browsing, Kamall reasoned, people constantly use the internet, so the data file could be continuous and ever-present.

Zuckerberg, as he did in the U.S., acknowledged a willingness to be regulated, but stressed again that it should be done “right.”

“We’ll never be perfect on this,” said Zuckerberg. “Our adversaries, especially on the election side, will have access to some of the same AI tools as we do. It’s an arms race.”