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The 66-year-old Wesolowski was arrested earlier this week at the Vatican, making him the highest-ranking Vatican official to be investigated for child sex abuse. He is charged with sexually abusing minors and possessing child pornography.

Investigators within the Vatican analyzed a computer that Jozef Wesolowski used in his Santo Domingo home, where he served as Holy See envoy from 2008 to 2012.

Investigators found more than 100,000 files showing underage children in sexually explicit situations, Il Corriere della Sera newspaper reported. Close to 160 videos showed teenage boys were forced to perform sexual acts on themselves and adults, the newspaper reported.

It appears that Wesolowski may have tried to destroy some of the evidence. Investigators said that at least 45,000 other photos were deleted.

The German study suggests a compound found in turmeric could encourage the growth of nerve cells thought to be part of the brain’s repair kit.

Scientists say this work, based in rats, may pave the way for future drugs for strokes and Alzheimer’s disease.

Overnight, riot police advanced on crowds who ignored official warnings that the demonstrations were illegal.

Protesters are angry at Chinese government plans to vet candidates in Hong Kong’s 2017 elections.

“Against weak competitors, a strategic approach is probably useful, because if you figure out the approach of the opponent, you can actually do better than when you’re just random. You can even out-compete them,” Karpova said.

But random exploration may be more appropriate to a new situation full of mixed signals, where experience offers no guide. Some part of the brain has to decide how to decide.

Researchers set out to find how and where such choices are made. They created three computer opponents with increasingly tough strategies to punish patterns in how rats sought selected holes to poke their noses in, looking for food. One was a bit lenient; the second, a bit less forgiving; and the third, strict — it was programmed to learn from the rat and thwart its strategy.

“When animals initially played against the weak competitors, they appeared to maintain a strategic approach, just like people have observed before with primates,” Karpova said. “But when we put them up against a very sophisticated competitor … the animals switched to the random mode.”

And they got stuck there, for hundreds of trials.

Researchers weren’t done. They created a new brain-buster. It gave higher rewards for a certain pattern of pokes (such as right-right-left) but also mild reward rates (16%) for non-patterned responses.

The “strategic” rodents that had played against competitors one and two beat the odds at the hidden pattern task. Their reward rates, about 20%, indicated that sticking to strategic thinking helped them uncover the hidden pattern. Those that had first played the sternest computer taskmaster earned just a 14.5% reward rate, below even the random rate.

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Under a Fed mandate, the investment banking behemoth was expected to have a company-wide policy to address conflicts of interest in how its phalanxes of dealmakers handled clients. Although Goldman had a patchwork of policies, the examiner concluded that they fell short of the Fed’s requirements.

That finding by the examiner, Carmen Segarra, potentially had serious implications for Goldman, which was already under fire for advising clients on both sides of several multibillion-dollar deals and allegedly putting the bank’s own interests above those of its customers. It could have led to closer scrutiny of Goldman by regulators or changes to its business practices.

Before she could formalize her findings, Segarra said, the senior New York Fed official who oversees Goldman pressured her to change them. When she refused, Segarra said she was called to a meeting where her bosses told her they no longer trusted her judgment. Her phone was confiscated, and security officers marched her out of the Fed’s fortress-like building in lower Manhattan, just 7 months after being hired.

“They wanted me to falsify my findings,” Segarra said in a recent interview, “and when I wouldn’t, they fired me.”

Ukraine has been receiving gas from Hungary, Poland and Slovakia since Russia cut off supplies to Ukraine in June in a dispute over unpaid bills.

Ukraine’s state-owned gas firm, Naftogaz, confirmed the stoppage. It called the move “unexpected and unexplained”.

FGSZ said it cut deliveries to Ukraine to raise the flow of gas to Hungary.

With winter approaching fears are mounting that Ukraine will be unable to heat homes and power industry without Russian gas.

Bash is the software used to control the command prompt on many Unix computers. Hackers can exploit a bug in Bash to take complete control of a targeted system, security experts said.

The Department of Homeland Security’s United States Computer Emergency Readiness Team, or US-CERT, issued an alert saying the vulnerability affected Unix-based operating systems including Linux and Apple Inc’s (AAPL.O) Mac OS X.

The “Heartbleed” bug allowed hackers to spy on computers but not take control of them, according to Dan Guido, chief executive of a cybersecurity firm Trail of Bits.

“The method of exploiting this issue is also far simpler. You can just cut and paste a line of code and get good results.”

Tod Beardsley, an engineering manager at cybersecurity firm Rapid7, warned the bug was rated a “10” for severity, meaning it has maximum impact, and rated “low” for complexity of exploitation, meaning it is relatively easy for hackers to launch attacks.

“Using this vulnerability, attackers can potentially take over the operating system, access confidential information, make changes, et cetera,” Beardsley said. “Anybody with systems using Bash needs to deploy the patch immediately.”