The United States and Canada have fallen deeper into a trade war. New tariffs are expected to raise prices for products in both countries. Each side is blaming the other for the collapse of negotiations in Washington late Friday. That's led  the U.S. to impose 50% tariffs on $20 billion worth of Canadian goods and Canada setting Sept. 8 as the start of its retaliatory penalties. President Donald Trump’s import taxes will hit about 5% of what Canada ships to the United States every year, ranging from hockey sticks to tongue depressors. Prime Minister Carney said Ottawa would respond with targeted tariff protection for industries exposed to the new U.S. duties. No new talks are planned.