Speaking of that Trump-Kim summit, an interesting thing has happened in North Korea: The propaganda boys have gone soft. No more talk of drowning dotards in a sea of fire. On ubiquitous street corner posters, storm clouds and bayonets are now out; blue skies and white doves are in. Newspapers that once presented the United States as monstrous now describe it as a more-or-less normal country.

Yet, state propaganda is not the only, or even the most important, source of news for ordinary North Koreans. Most recent available data (2012) shows that 71 percent of North Koreans say “word of mouth” is an important source of information. Just 38 percent said the same for state television. Other major sources of information inside North Korea include smuggled DVDs and South Korean radio. The probable result is that, confused as the rest of us are about what to expect next, North Koreans must be especially confused.

North Korea’s government, meanwhile, may still be hedging its bets on the future of peace negotiations. 38 North, part of Washington’s Stimson Center, reports that satellite photos show North Korea is making visible improvements to the Yongbyon Nuclear Scientific Research Center. Images show several new buildings, fresh work on a cooling water reservoir, and an apparently active radiochemical laboratory.

It’s too early to know whether North Korea is playing a cynical double game or just “hoping for the best while preparing for the worst.” In either case, North Korea’s people will be the last to know.

Ferrera Erbognone, a small town in the northern Italian province of Pavia, is home to one of the most cutting-edge computing centers in the world: Eni's Green Data Center. All of the geophysical and seismic prospecting data Eni produces from all over the world ends up here. Now, the Green Data Center is welcoming a new supercomputing system: HPC5, an advanced version of the already powerful HPC4. Due to be completed by early 2020, HPC5 will triple the Green Data Center's computing power, from 18.6 to 52 petaflops, equivalent to 52 million billion mathematical operations per second.

Learn more at Eniday: Energy Is A Good Story

Why is Instagram going to hide likes?

Well, one explanation is that they want to encourage healthy behavior and a like can make us addicted. Second explanation is that they get rid of the likes, they can get more of the cut in the market for influencers, who get money from advertisers, sometimes based on likes.

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This week, the process of impeaching President Trump entered the critical phase as the House of Representatives held its first public hearings. The battle lines are now drawn.

The Democrats say that there is compelling evidence that Trump withheld badly needed military to aid to an ally at war to pressure that country's government to provide him with personal political benefit by helping him discredit a political rival.

The Republicans say that the evidence comes mainly from witnesses with little or no direct contact with the president, and that the military aid was delivered to Ukraine without the Ukrainian president taking the actions Trump is alleged to have demanded.

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The fight for the Nile: In recent days, the Trump administration has tried to mediate three-way talks between Egypt, Sudan, and Ethiopia on their long-running dispute to access the waters of the Nile. In short, a 1929 treaty gave Egypt and Sudan rights to nearly all Nile waters and the right to veto any attempt by upstream countries to claim a greater share. But in 2011, Ethiopia began work on the so-called Grand Renaissance Dam on the Blue Nile tributary from where 85 percent of the Nile's waters flow. The project, due for completion next year, will be Africa's largest hydroelectric power plant. Egypt, which draws 85 percent of its water from the Nile, has made threats that raised fears of military action. We're watching as this conflict finally comes to a head early next year.

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