What We're Watching: Proxy Problems and Real Experts on Fake News

Iran's proxies – The thing about "proxies" is that you don't always have perfect control over what they do. To varying degrees, Iran funds and backs Hizbullah in Lebanon, Hamas in Gaza, Houthi rebels in Yemen, and various militias in Iraq. But these groups also have agendas and interests of their own. Sometimes they'll do things Iran doesn't want them to do. At a time of high tensions between Iran, Saudi Arabia and the United States, these proxies can create trouble for Iran whether they've acted in coordination with its government or not.

Finns fighting fake news "Fake news," the dissemination of false information designed to create confusion and sow division, has become a truly global problem, but at least one country has a proven track record in helping its citizens to recognize and reject it. Finland has faced information warfare in various forms since declaring independence from Russia a century ago, but since Russia's invasion of Crimea in 2014, the country's government has worked hard to help its people – in particular high school students -- spot false information. This report suggests we can all learn something from the Finns' example.

What We're Ignoring: Fruitless British ploys and Venezuelans at the Pentagon

A second referendum on Brexit – A collective guffaw arose in the office here when we learned yesterday that British Prime Minister Theresa May had made yet another attempt to rally support for her thrice-rejected deal to leave the EU. This time she promised to let Parliament vote on whether to hold a second referendum on Brexit, but only if MPs pass her withdrawal agreement first. It's a notable concession by May, who had previously resisted calls for another referendum. But some prominent Brexit supporters have rejected the move, and we doubt that a whole lot of Remainers will be swayed by a promise to hold a vote on whether to ask the public to hold a vote.

Venezuelan talks – An emissary of Venezuelan opposition leader Juan Guaidó (recognized as president by more than 50 countries) went to the Pentagon on Monday for talks with the US military, evidently about humanitarian assistance. This follows last week's meetings in Norway between reps of both Guaidó and President Nicolas Maduro. Talks are good, but we don't see much scope for progress. Guaidó wants the one thing – free and fair elections – that would be certain political suicide for Maduro, whose approval rating is a deservedly pitiful 12 percent. But following Guaidó's failed April 30 uprising, the Maduro regime is feeling like it's got the momentum now. We see no compromises on the horizon.

Wrecking the global economy's hopes for a relaxing late-August Friday, China and the US have taken fresh shots at each other in their deepening trade war.

First, China announced new tariffs on US goods in response to US levies on China's exports that are set to take effect next month.

Trump responded with a vintage tweet storm, lashing out at China and demanding that US firms stop doing business there. The Dow plunged as markets waited for the next shoe to drop. And drop it did: later in the day Trump announced higher tariffs on nearly everything that China exports to the United States.

Why now? Bear in mind, all of this comes right as Trump is leaving for this weekend's G7 summit in France. That gathering already promised to be a testy one – but with the global economy slowing, the impact of Trump's increasingly nasty trade war with China will add fresh tensions to the occasion.

So where are we in the trade war now? Here is an updated list of what measures each side has imposed to date, and what's next. Both sides have a lot at stake, but from the looks of it, the list isn't going to get shorter any time soon.

When Donald Trump first started talking about buying Greenland last week, we figured it was a weird story with less legs than a Harp seal.

Signal readers, we were wrong. President Trump was so serious about purchasing the autonomous Danish territory that this week he abruptly cancelled a trip to Denmark after the country's prime minister, Mette Frederiksen, labelled the idea "absurd."

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The Amazon in flames – More than 70,000 forest fires are burning in Brazil right now, most of them in the Amazon. That's up 84% over the same period last year, and it's the highest number on record. This is the dry season when farmers burn certain amounts of forest legally to clear farmland. But critics say Brazilian president Jair Bolsonaro's efforts to loosen conservation rules have encouraged farmers, loggers, and miners to set more fires, many of them illegally. Bolsonaro – a science skeptic who recently fired the head of the agency that tracks deforestation – says, without proof, that NGOs are setting the fires to embarrass his government. Meanwhile, the EU is holding up a major trade deal with Brazil unless Bolsonaro commits to higher environmental protection standards, including those that affect the Amazon.

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Over the past fifty years, the Amazon rainforest has shrunk by an area equal to the size of Turkey. In the 1960s and 1970s, the Brazilian government supported settlement of the sparsely populated region for security reasons. Since then, huge swaths of the forest -- which is crucial for limiting the world's greenhouse gasses -- have been cleared for farmland used to feed Brazil's population and support its massive agricultural exports. Greater awareness of the environmental impacts in the 1990s produced tighter conservation regulations, though plenty of illegal clearing continues. In recent years, the annual deforestation rate has begun to rise again, and Brazil's new president Jair Bolsonaro has pledged to weaken regulations further in order to support businesses.