Latest in Ukraine: Expectations are growing for China's Xi Jinping to visit Russia
Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
nord stream
The Nord Stream leaks are a wake-up call for countries with vulnerable pipelines
There are enough miles of pipelines around the world to circle the Earth 30 times — and many are vulnerable. That doesn't mean there aren't things countries can do to protect them, an expert says.