Fighting fraud "is not a top priority" for major insurers, ProPublica reports, because they can just pass along the cost of wasteful spending to enrollees and employers.

Why it matters: Experts say fraud likely accounts for 10% of U.S. health costs. However, "private health insurers, who preside over some $1.2 trillion in spending each year, exhibit a puzzling lack of ambition when it comes to bringing fraudsters to justice," ProPublica's Marshall Allen writes.

Case in point: In California's 14 largest counties, which cover 80% of the state's population, prosecutors filed charges in only 22 fraud cases referred by a commercial insurer in 2017 and 2018 combined.

  • Investigating fraud can be costly for insurers — both financially and in terms of their relationships with providers.

Go deeper, via ProPublica: How to Make Health Insurers Take Fraud Seriously

Go deeper

Chief Justice John Roberts was hospitalized in June after fall

Chief Justice John Roberts overseeing the Senate impeachment trial of President Trump. Photo: Senate Television via Getty Images

Chief Justice John Roberts was hospitalized overnight after a fall on June 21, a Supreme Court spokesperson confirmed to the Washington Post on Tuesday.

Why it matters: Speculation regarding justices' health — given their lifetime appointments — always runs rampant, and this incident may have not been made public if the Post hadn't "received a tip."

Congress vs. tech's gang of four

Illustration: Sarah Grillo/Axios

The CEOs of tech's four leading giants will defend their industry's growing concentration of power from critics on both right and left who view them as monopolists when they testify, most likely virtually, before Congress on July 27.

Why it matters: The joint appearance by Facebook's Mark Zuckerberg, Apple's Tim Cook, Amazon's Jeff Bezos and Google's Sundar Pichai will mark a historic collision between the leaders of an industry that has changed the world and political leaders who believe those changes have harmed democracy and individual rights.

2020 attention tracker: The Trump policy trap

Data: Newswhip; Graphic: Axios Visuals — Note: Hover over the graphic on desktop to see weekly articles and interactions for candidates and issues.

The three topics generating the most intense interest online are the coronavirus, racial injustice and foreign policy, according to data from NewsWhip provided exclusively to Axios — and all are issues that are working against President Trump right now.

Why it matters: Storylines in Trump's populist sweet spot that carried the news cycle for much of his presidency — immigration, trade, a strong economy — have fallen away during the pandemic.