>Priti Patel, the U.K.’s home secretary, has previously warned that Facebook’s plan to enable users to send end-to-end encrypted messages would benefit criminals...
In London alone, it is not possible to pay for public transport with cash. A debit card/oyster is required but for anonymous travel, an oyster can be topped up via cash and reduces transport surveillance, unlike using credit / debit cards. Their reasons for doing this because it "benefits criminals" is echoing the "ban encryption" nonsense.
> The U.K. and the U.S. have agreed not to investigate each other’s citizens as part of the deal...
This I don't believe.
EDIT: Use a oyster card for public anonymous transport, refrain from using a credit / debit card for this.