The alluded to Financial Times article in archive form:
(from the link)
"While most see big deficits as a price worth paying to combat the crisis, many worry about a debt overhang in a post-pandemic world. Some fear that investors will grow weary of lending to cash-strapped governments, forcing countries to borrow at higher interest rates. Others worry governments will need to impose painful austerity in the years ahead, requiring the private sector to tighten its belt to pay down public debt.
They should not. While public debt can create problems in certain circumstances, it poses no inherent danger to currency-issuing governments, such as the US, Japan, or the UK. This is not, as some argue, because these countries can currently borrow at very low cost, or because a strong recovery will allow them to grow their way out of debt."