The US is having trouble making enough masks to meet its normal day-to-day demand for them, let alone the increase from a pandemic, because almost all the mask

The US is having trouble making enough masks to meet its normal day-to-day demand for them, let alone the increase from a pandemic, because almost all the mask production has been outsourced to China and they're redirecting the entire output to local use. That's an issue and it's a reason why the US might want extremely substantial tariffs or even quotas on mask imports in normal circumstances.