Experts seem to agree on two principles with respect to free speech and tech company arbitration. First, social-media companies, like other private publishers and unlike the government, are not bound by the First Amendment—meaning that they have discretion over what kind of speech is allowed on their platforms. And second, it is dangerous for the government to play a role in censoring content and advertisements on social media—beyond requiring companies to ban illegal activity from their platforms.

Further, many experts believe that mandating the disclosure of political-advertisement sources on Facebook, like the requirement for television or radio to identify ad sponsors on air, could help solve the problem. “Even if nothing else is done, it should be possible to require that political advertisers on Facebook embed the financing information in the ad, and it should be possible for Facebook to archive a copy of the ad with state elections officials or the FEC,” says Philip Howard, the director of research at the Oxford Internet Institute.

Senators Mark Warner and Martin Heinrich have suggested that social-media ads should be regulated like TV ads. And Warner, who vice-chairs the Senate Intelligence Committee, is calling for Facebook and Twitter to testify about Russian election meddling, as he sees the current landscape of social media and political campaigns as “the Wild West.”

Of course, with any new disclosure requirements, defining the realm of political speech for Facebook and other online entities won’t be simple. Most of the Russian ads disclosed last week were aimed at increasing the divisiveness across contested issues in America rather than overtly endorsing a candidate. Similarly, lawmakers would need to define the extent (if any) to which digital platforms should be required to investigate the underlying identities of its ad buyers.

Facebook, for its part, is “always exploring ways to make our ad policies more effective and transparent,” a press representative claims.

The story of Russian Facebook advertisements also fuels the debate about the responsibilities of American companies that serve international populations. For example, India has more active Facebook users than the United States. Chinmayi Arun, an assistant professor at the National Law University in Delhi, sees the need for additional mechanisms to both flag harmful content and to contest unreasonable censorship by platforms.

It remains unclear if Facebook will adopt this or other measures. Morgan Weiland, an attorney and scholar affiliated with Stanford Law School’s Center for Internet and Society, believes that along with previous problematic content—like untrue news and hoax videos—last week’s revelations may help force tech companies to identify their values and define their role in the public discourse.