The National Security Agency routinely shares raw intelligence data withIsrael without first sifting it to remove information about US citizens, a top-secret document provided to the Guardian by whistleblower Edward Snowden reveals.

Details of the intelligence-sharing agreement are laid out in a memorandum of understanding between the NSA and its Israeli counterpart that shows the US government handed over intercepted communications likely to contain phone calls and emails of American citizens. The agreement places no legally binding limits on the use of the data by the Israelis.