After a 10 percent tariff on Chinese products took effect on Tuesday, China announced retaliatory measures, including tariffs and an investigation of Google. Protectionism (Trade), International Trade and World Market, International Relations, Customs (Tariff), China, United States, Trump, Donald J, Xi Jinping, Fentanyl After a 10 percent tariff on Chinese products took effect on Tuesday, China announced retaliatory measures, including tariffs and an investigation of Google. NYT > Business