Premarket: Wall Street futures steady following trade-driven selloff

Global stocks were flat to marginally higher on Tuesday, as investors took in their stride the latest twist in U.S. President Donald Trump's tariff roll-out, while the yen slid on 25-per-cent duties facing Japanese goods. Mr. Trump sent letters to 14 countries on Monday, including top Asian trade partners such as Japan and South Korea, unveiling sharply higher tariffs on imports into the United States. However, market reaction has broadly been guarded, compared to the sharp declines witnessed in the aftermath of "Liberation Day" three months ago, on expectations that countries would strive to seal trade deals with the United…