It is the latest escalation in a trade war between the two countries, and comes as Canadian retaliatory tariffs on US goods come into force.
Read the full original article: https://www.bbc.co.uk/news/articles/c99dm1000p7o?at_medium=RSS&at_campaign=rss
Sources: bbc_world
Listen on air.
Catch the international world press review on GLAMS Radio in continuous rotation.