1. Trade showdown: The global trade clash is heating up this week. US tariffs on $34 billion worth of Chinese goods are due to go into effect on Friday, and Beijing is expected to retaliate in equal measure the same day. Where U.S. stocks are heading Dow Futures Nasdaq Futures S&P Futures -163.00 -50.75 -15.75 -0.67% -0.72% -0.58%
