Owned by Tencent, one of China's biggest companies, the WeChat app has more than 1 billion monthly users in China, and now serves users outside the country, too.
Martin Bureau/AFP/Getty Images
Straphangers wait for an L Train in New York City as it pulls into the First Avenue station. A bill under consideration might bar New York from replacing these cars with Chinese-made ones.
Russian President Vladimir Putin, shown here at the Kremlin in Moscow on Thursday, said on Friday that Russia should respond in kind to the testing of a new U.S. cruise missile.
Alexander Zemlianichenko/AFP/Getty Images
A Palestinian man uses a biometric gate as he crosses into Israel at the Qalandia crossing in Jerusalem in July. Israel's military has invested tens of millions of dollars to upgrade West Bank crossings and ease entry for Palestinian workers. But critics slam the military's use of facial recognition technology as problematic.