• Not so hot on hotlines. When multiple allegations of sexual harassment by Fox News host Bill O'Reilly were reported this month, representatives for 21st Century Fox pointed to the company's anonymous hotline, saying no employee had ever used it to complain about employee behavior.

CNN co-anchor Alisyn Camerota, the most recent Fox News host to come forward with sexual harassment allegations against ex-CEO Roger Ailes, says she did not know of the hotline's existence: "There was no hotline; I can't underscore this enough," she said. "When you have a real hotline, you put up posters: ‘If you see anything, feel anything, here's the number to call.' That did not exist."

The New York Times' Noam Scheiber spoke to a number of employment law experts about such hotlines and found that not only is it typical for employees to be unaware of their existence, but that hotlines often become a tool for suppressing harassment allegations rather than dealing with them. The veneer of anonymity can even make retaliation by the employer easier, he explains: "Companies can claim they could not possibly have retaliated because they did not know the identity of the tipster, when in fact they did."

• Le Pen advances. Far-right populist candidate Marine Le Pen has qualified for France's May 7 runoff election, where she will face centrist Emmanuel Macron. As the preliminary results were announced this weekend, virtually all of Le Pen's major opponents in the 11-person race called for her defeat in the second round, imploring their supporters to vote for Macron. Time

• Mentors and more. The 2017 class of the Fortune/U.S. State Department Global Women's Mentoring Partnership arrives in Washington, D.C. this week. To learn more about the program, check out our video series here. In the latest video, Solera Capital founder and CEO Molly Ashby talks about how the most effective mentors go beyond business. "Every single one of the mentees I consider one of my children and part of my family," says Ashby. "The most valuable way you can impact their lives is to really help them with what is the most important issues in their lives." Fortune

• Nurse to surgeon general. Depending on who you ask, former Surgeon General Vivek Murthy has either resigned or been fired, but there's no dispute over who has replaced him, at least for now. Murthy's deputy, Rear Adm. Sylvia Trent-Adams, becomes one of the first nurses to serve as surgeon general. New York Times

• The saga continues. Elizabeth Holmes-led blood-testing startup Theranos allegedly misled company directors about its laboratory-testing practices, used a shell company to "secretly" buy commercial-lab equipment, and improperly created rosy financial projections for investors, according to allegations in newly unsealed court filings in a suit by one of its investors. The company disagrees with many of the allegations. Fortune

• Marching for science. Female scientists were out in force at this weekend's science march. CNN spoke to a number of them about why they decided to demonstrate. CNN

MOVERS AND SHAKERS: Julie Radford, who worked under former education secretary Margaret Spellings during President George W. Bush's time in office, is going back to the White House as Ivanka Trump's chief of staff. Kimberly Salzer, formerly the CMO of Hyperloop One, has taken a job at Ozobot as its chief marketing officer. Kristina M. Johnson , who served as undersecretary in the United States Energy Department before founding a hydroelectric company, will be appointed chancellor of the State University of New York. Beth Cobert , former acting director of the United States Office of Personnel Management, has been named CEO of Skillful.

Each week, Fortune asks our Insider Network — an online community of prominent people in business and beyond — for career and leadership advice. Here's some of the best of what we heard last week.

• More than she bargained for. At her first job, Tey Scott, now senior director of talent acquisition at LinkedIn, says she made a habit of offering her help to more senior staffers. She just wanted to learn more about her industry, but ended up building valuable relationships.  Fortune

• Don't miss your morning routine. Starting your day right is essential to thinking clearly throughout the day, writes Gina Argento, president and CEO of Broadway Stages.  Fortune

• Boredom can creep up on you. Lori Mitchell-Keller, global general manager at SAP Consumer Industries, says you always need to be learning new things in your career. If you aren't, turn to your mentors for help finding a more interesting challenge.  Fortune

• Cruising to the top. This week's episode of our Fortune Unfiltered features Christine Duffy, president of Carnival Cruise Lines.  Fortune

• Warren's writing. Massachusetts Sen. Elizabeth Warren's new book, This Fight Is Our Fight contains juicy but depressing anecdotes about how financial institutions have let us down. "In too many of these organizations, there are rewards for cheating and punishments for calling out the cheaters," the Democrat said in a New York Times interview. "As long as that's the case, the biggest financial institutions will continue to put their customers and the economy at risk." New York Times

• Trump's unofficial advisers. The New York Times identifies 20 people outside of the White House who President Trump turns to for advice on a regular basis. Interestingly, only two women made the list: Melania Trump and Sheri Dillon, the ethics lawyer who worked out the highly criticized plan for the president to retain ownership of his company but step back from running it.  New York Times

• Margo's plans for Mattel. Toymaker Mattel's newly appointed CEO Margo Georgiadis spoke to Fortune's John Kell about her plans for the company. The ex-Googler said she wants the toy maker to lean on technology across all areas of the business—including inventory management, innovation, marketing, and selling toys to shoppers that spend more time buying online and increasing less visiting physical stores.  Fortune

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