With President Trump declaring a trade war with China, many American industries have been caught in the crossfire. China buys 70% of American soy beans - that the industry has been among the first to take a hit. Also under fire is the aerospace industry - as a fifth of America's Boeing planes are sold to Chinese airlines. Other American industries affected include cars, computers, cell phones, and processed metals. Meanwhile, US stocks dropped more than 2-percent on Friday with the Dow falling more than 500 points after Trump's announcement.