MI6 chief Sir John Sawers said the leaks from NSA whistleblower Edward Snowden "have been damaging and put operations at risk." The heads of Britain's intelligence agencies were questioned by MPs in public for the first time.
Working at MI6 is not like James Bond, one of the security chiefs told MPs that operatives are given far more supervision.
"The idea of sending an agent off into the field like James Bond, then he comes back two months later and reports... that doesn't work that way," Sir John Sawers, chief of MI6, said. "Our people in the field will have constant communication with us."
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.