Today's top headlines: The Trump administration told China to bring it on trade and China did, launching a retaliation; Asian markets tumbled and futures indicated Wall Street would too; Singapore's police warned about a surge in kidnapping scams; The Ministry of Health wants to update the standards for practitioners of traditional Chinese medicine; Malaysia's Prime Minister announced salary increases for civil servants just ahead of the upcoming elections; a female shooter injured three people at YouTube's headquarters before killing herself; and US President Trump is threatening to send the military to the U.S. border with Mexico.