Hannah Bloch

Three years ago, we published a story about a small start-up in Kigali, Rwanda's capital, that was seeking to make homes more sanitary by replacing dirt floors with sealed earthen floors, which are up to 80 percent cheaper than concrete.

Nawaz Sharif, who served until Friday as the 18th prime minister of Pakistan, is no stranger to his country's courts. In three tumultuous go-rounds as premier over the past 27 years, he's been embroiled repeatedly in judicial cases on charges ranging from corruption and contempt to terrorism and treason.

On an overcast late-spring afternoon, a group of bird lovers from the Earth Conservation Corps are in a boat on Washington, D.C.'s Anacostia River, and point out an osprey circling overhead. "This is like their summer vacation spot and where they have their young," says Bob Nixon, in the boat. "Then they spend most of their lives in the Amazon."

Amid deep strains in the U.S. relationship with Mexico, a country that's been a favorite target of President Trump, Secretary of State Rex Tillerson and Homeland Security chief John Kelly took part in talks in Mexico City on Thursday that were aimed at smoothing out tensions.

"That's going to be a tough trip," the president said Thursday morning at the White House. Some of the key issues between the two countries: immigration, border security, trade and U.S. aid to Mexico.

As Donald Trump was sworn in as the 45th U.S. president, protests, demonstrations — and a few celebrations — were underway in cities around the world.

In London, demonstrators holding anti-Trump signs gathered outside the U.S. Embassy on Friday evening. Earlier in the day, huge banners saying "Build Bridges Not Walls" were hung across the city's bridges, part of a U.K. campaign that that began after Trump was elected in November.

It hasn't been easy for journalists covering the 2016 presidential race. While doing their jobs, they've had to confront unprecedented threats, abuse, bans and accusations of conspiracy and bias.

Back in January 2010, Patrick Meier, a Ph.D. student in international relations at Tufts University, was checking email at home, with CNN on in the background, when he was jolted by a breaking news alert. An earthquake had struck Haiti, and tens of thousands were feared dead.

"I froze," he says. "Just paralyzed."

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ARI SHAPIRO, HOST:

For many of us, Sept. 11, 2001, is one of those touchstone dates — we remember exactly where we were when we heard that the planes hit the World Trade Center and the Pentagon. I was in Afghanistan.

I'd arrived in Kabul on Sept. 9 to cover the trial of eight foreign aid workers who had been arrested by the Taliban regime, which accused them of preaching Christianity to Afghans. Proselytizing was a death penalty crime, and two Americans were among the accused.

Andrew Mack, a former strategic planning director at the United Nations and now a fellow at the One Earth Future Foundation in Broomfield, Colorado, coined the term "asymmetric conflict" back in 1975.

Abdul Sattar Edhi, Pakistan's best known humanitarian, died in Karachi on Friday night.

From his base in Karachi's inner city, Edhi, who was 88, created a network of social services for his country, including a fleet of 1,500 ambulances, 24-hour emergency services, homeless shelters, orphanages, blood banks and homes for unwanted and abandoned infants. Even during years of agonizing gang violence in Karachi, Edhi frequently drove his own ambulance and showed up personally to transport and care for the injured or wash the dead.

Amid all the macro-level questions about the effects of Britain's decision to leave the European Union — its broad economic and political repercussions — the Brexit will be felt in small, practical, everyday terms as well. Although it's impossible to predict exactly how things will play out, here are a few of the possible ways Britons may experience repercussions of the Brexit:

Mobile phone usage

As global markets lurched following Great Britain's vote to withdraw from the European Union, political leaders from around the world weighed in, expressing worry and solidarity with the EU and acknowledging the need to rethink the EU's future. Some opposition leaders cheered Britain's example. A sampling:

When Taliban leader Mullah Akhtar Mansour was killed in a U.S. drone strike in Pakistan on May 21, many wondered whether his death might help open a window to peace in Afghanistan.

"A new opportunity presents itself to those Taliban who are willing to end war and bloodshed," Afghan President Ashraf Ghani tweeted a day after Mansour's death.

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