Today, young Americans' views on US foreign policy are often at odds with the Silent Generation and the Baby Boomers, who vividly remember the great power rivalry of the Cold War. As a result, many of them tend to believe that the US has a responsibility to project power around the world. Of course, what America's youth think matters a great deal, because they'll make up the bulk of the future voting electorate — and thus could determine the direction of US foreign policy for years to come. We take a look at how different age groups feel about US responsibilities on a range of foreign policy issues based on a recent survey from the Eurasia Group Foundation.

Chaos ensued globally this week when Facebook – and Facebook-owned WhatsApp and Instagram – went dark. That's because the world's biggest social media platform now reaches more than 3.5 billion people a month. In many places around the globe, these apps are literally a lifeline: many small businesses rely on Facebook to sell their products, families use WhatsApp to keep in touch, and young people are hooked on Instagram. Indeed, if nothing else this week's turmoil reveals the massive extent to which Facebook Inc. influences people's lives — and livelihoods. We take a look at where these three platforms are used most around the world.

After Asian Americans, Hispanics are now the fastest-growing ethnic/racial group among the US population, and contributed half of America's population growth over the last decade. But although Hispanics make up 19 percent of the general population today, they hold less than one-tenth of seats in Congress. Will this change significantly by 2060, when the Hispanic share of the US population is projected to reach 28 percent? To mark Hispanic Heritage Month, we take a look at Hispanic representation in the House and Senate, compared to Hispanic share of the population, over the last 20 years.

The United States and the European Union have comparable population sizes, but the trajectories of their COVID outbreaks have diverged. The US death rate per million people is steadily rising as a result of the more contagious delta variant and vaccine skepticism, while the bloc's deaths have remained mostly flat — a massive change from this past spring, when the EU's death rate was outpacing America's. One big reason is that the EU has overtaken the US in vaccinations per capita, with 70 percent of European adults now fully vaccinated. Here's a look at the seven-day rolling average of new COVID deaths per million in the US and EU since the start of the pandemic, and COVID vaccination rates in 2021.

The exodus of Venezuelan nationals is currently the world's second largest refugee crisis, exceeded only by the one in Syria. Of the over five million Venezuelans currently living outside their country, more than 80 percent are located throughout Latin America and the Caribbean, with the lion's share hosted by neighboring Colombia. We take a look at which other Latin American countries have sizable populations of Venezuelans at the moment.

Afghanistan has been America's longest war — by a long shot. In today's dollars (adjusted for inflation) it's also the third most expensive US foreign war ever, surpassed only by Iraq and World War II. Yet, nearly 20 years of American boots on the ground and over $2 trillion spent have failed to prevent the unfolding catastrophe as the last US troops leave Afghanistan. Meanwhile, the human toll has been enormous: over 3 million Afghans have been displaced, and tens of thousands of Afghan security forces and US military personnel and contractors have been killed in a war that's come full circle, with the Taliban now in charge once again. We take a look at some of the economic and human costs of two decades of US military involvement in Afghanistan.

Tokyo 2020 is set to be the most expensive summer Olympics ever, and will likely exceed the original budget by a lot once all costs of the one-year delay due to COVID are tallied up. But cost overruns are actually a given for the Games, which since 1960 have always gone over budget — roughly by 173 percent on average. Given that national governments end up footing most of the bill, it's no surprise that in recent years fewer cities have competed to host the Games, and that Brisbane's 2032 bid was unopposed. We rank the last 15 Olympics by how much their final cost exceeded their initial budget.

German Chancellor Angela Merkel and US President Joe Biden have both been in politics for a long time. Biden was first elected to the US Senate in 1972, when Merkel was still studying physics in communist East Germany. But she became Germany's leader 15 years before Biden won the White House in 2020. The two have a warm personal relationship, dating back to when Biden was Obama's VP. But they won't overlap for much longer because Merkel is stepping down in September. The two seasoned politicians have seen a lot during their extensive political careers. We map them out here.