(CNN) — In the US and across the world, lawmakers and regulators are demanding answers from Facebook and Cambridge Analytica in the wake of a global scandal centered on the harvesting of the personal data of 50 million users.

The row was sparked by a series of reports in the UK newspaper the Observer, TV network Channel 4 News and the New York Times, based on documents and testimony from a former employee, revealing how a personality quiz taken by 270,000 people — who were paid for their time — was used to harvest information on 50 million of their friends.

The information was then allegedly used to help in the digital campaigning efforts of President Donald Trump during the 2016 election — a claim Cambridge Analytica denies.

Adam Schiff, the ranking Democrat on the House Intelligence Committee, has demanded answers from both companies, even threatening the use of subpoenas “if necessary” — though Facebook and Cambridge Analytica have both subsequently agreed to brief lawmakers.

Separately, the FTC has announced it is investigating whether the data harvesting breached a 2011 settlement between the company and regulators, while in the UK, Parliament has asked Facebook founder Mark Zuckerberg to testify in front of a committee. The country’s information commissioner — its data watchdog — has launched a separate investigation.

On the face of it, this is regulation working exactly as it should: Something shocking has been revealed and lawmakers and agencies are working together to get to the bottom of it. It’s certainly right that Facebook and Cambridge Analytica should face some tough questions. But lawmakers and regulators should be asking themselves some tough questions too.

The reason everyone is taking action now is because of good reporting that landed at exactly the right time, in the middle of a backlash against technology companies that had previously been given a free ride by media and politicians alike. It has also come against the backdrop of concerns about online misinformation from Russia and elsewhere reshaping the West’s politics.

But lawmakers and regulators alike could have taken action on this issue far sooner: before the US elected Donald Trump and before the UK voted for Brexit — both elections that some claim were influenced by Cambridge Analytica.

Why? Because the claim at the center of the most recent stories had already been reported by the Guardian in 2015.

That story, which was reported while Cambridge Analytica was running the digital campaign of Ted Cruz’s primary race, included the facts that the company had harvested data from 40 million or more profiles, was using this in political profiling and had done so by paying participants to take a personality quiz designed by Alexander Kogan. The story even included reaction from Facebook on the activities.

While the more recent stories add new facts and far more color, any member of Congress who had chosen to google around the issue could have been armed with this information when questioning either Facebook or Cambridge Analytica — both of which have appeared in front of committees since that original report.

The technology giants have been allowed to grow and become some of the world’s largest companies with very little scrutiny. As this has happened, traditional media and legislators have struggled to understand their workings, or the ramifications of the new world that these firms have built.

It is certainly to the good that such companies lose their halo and face the same scrutiny as companies in any other sector. But for as long as lawmakers can only ask questions in the wake of a story reaching front pages across the world, they will only ever be playing catch-up and covering yesterday’s scandal, failing to protect us from tomorrow’s.

If lawmakers and regulators had asked the right questions of Facebook and Cambridge Analytica in 2015, when the story first broke, we could have had a debate about micro-targeting — and online information and misinformation — before the hugely controversial 2016 votes in both the US and UK.

Neither can now turn back the clock, but they can try to look ahead to the stories that aren’t immediately front-page news, and make sure we go into the next technological revolutions with our eyes open and with good laws and rules laid out.

The technology sector is working on numerous things that could reshape our world.

At the simple end, this includes self-driving cars, which come with huge potential but also huge risks. It includes algorithms that determine who gets paid what, who gets loaned what and how long people go to jail.

Further down the road, it also includes artificial intelligence, which could reshape the workplace — and possibly even our biology.

Action from lawmakers and regulators after something makes global headlines is good, but it’s not enough — we need them to be out in front.

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