During WW2, there were not a large supply of shut down weapon factories. Car factories, for example, could be retrofitted to fabricate ventilators. It will not

During WW2, there were not a large supply of shut down weapon factories. Car factories, for example, could be retrofitted to fabricate ventilators. It will not be easy, it will cost money and a relatively long time, but it will probably be easier than building totally new factories, and it will be more productive than reading tweets the whole day.