Chaos and uncertainty have followed President Trump's announcement of sweeping new tariffs, with financial markets experiencing a wave of selling and economists grappling with the possibility of a severe economic downturn. Trump's top economic advisers, however, dismissed the turmoil, insisting that the trade war would ultimately improve America's economic fortunes. In another news story, two witnesses have claimed that Israeli soldiers fired on ambulances and a fire truck in Gaza, killing 15 rescue workers. The Israeli military has admitted that its initial accounts of the troops' involvement in the shooting were partially mistaken. Finally, more than 100 chemical weapons sites are suspected to remain in Syria after the fall of Bashar al-Assad, according to the world's leading chemical weapons watchdog.