Chinese espionage has been so successful because the United States allowed it to fester. Spy balloons are just the tip of the iceberg.
Tokyo is hesitant to name China as the target of its semiconductor export controls. But it should not distort basic principles out of fear of retaliation.
"Xi Jinping will conclude that, if Putin can take Crimea, he can take Taiwan," warns Anders Rasmussen, based on his years of experience leading NATO.