Facebook is looking to hire people who have national security clearances, Bloomberg reports. Apparently, the company believes such measures are “necessary to prevent foreign powers from manipulating future elections through its social network,” Bloomberg writes, citing sources with insight into Facebook’s thinking. “Workers with such clearance can access information classified by the U.S. government.”

Facebook is committed to helping U.S. congressional investigators publish Russia-backed political ads that ran during the last election, COO Sheryl Sandberg said this week. “Things happened on our platform in this election that should not have happened,” Sandberg said in an interview with Axios, as reported by Reuters. “We told Congress and the intelligence committees that when they are ready to release the ads, we are ready to help them.”

Twitter reportedly deleted tweets connected to Russia’s manipulation of the network during the last presidential election. “A substantial amount of valuable information held by Twitter is lost for good,” Politico reports, citing cybersecurity analysts and other current and former U.S. officials.

In response to sexual harassment allegations, Amazon just suspended Roy Price, vice president of Amazon Studios and global head of Prime Video content. The harassment claim came from one of the company’s producers, according to The Hollywood Reporter. In Price’s absence, chief operating officer Albert Cheng will step in,” it writes.

The Verge’s Casey Newton suggests that Facebook’s automated ad auctions reward “popular but polarizing messages with lower unit costs.” Put another way, “Facebook’s auction-based system rewards ads that draw engagement from users by making them cheaper, serving them to more users for less money,” he argues. “The system also encourages polarization by incentivizing ads that users are predisposed to agree with.”  

The New York Times’ Kevin Roose isn’t satisfied with the degree to which Facebook is opening up about its political ad-review process. Among other unanswered questions, the social network won’t say how many human ad reviewers it employed in November 2016. In all, Facebook only answered five of the 12 political ad-related questions sent by Roose.  

Like Google Home, Amazon’s Alexa voice assistant can now recognize individual voices, and offer personalized responses. “Once you set up the feature, Alexa will learn your voice (versus your spouse/partner/roommate’s voice) and be able to deliver a more personalized experience,” a company spokesperson tells The Verge.

Following tests in California and New York, Target is expanding its partnership with Google Express nationwide. As CNBC writes: “The big-box retailer is among several that are deepening their relationships with Google’s voice-activated shopping platform in a battle for market share against Amazon’s Alexa-enabled devices.”

Mark Zuckerberg is expressing regret over streaming a highly-insensitive “virtual tour” of hurricane-shattered Puerto Rico. In a blog post, Zuckerberg admits that his “goal of showing ‘how VR can raise awareness and help us see what's happening in different parts of the world’ wasn't clear,” the Associated Press writes. “He says he’s sorry to anyone who was offended.”

Amazon is now offering teens -- ages 13 to 17 -- their own login credentials, with which they can shop and stream content under an adult’s Prime account. “Parents can set customized spending limits and approval requirements, and teens can send personalized notes like, ‘this is the book I need for class,’” ZDNet reports. “The teen accounts are a part of Amazon Households.”