be economical with the truth(euphemistic lie or deliberately withhold information ¦ Origin: from a statement given in evidence by Sir Robert Armstrong, British cabinet secretary, in the ‘Spycatcher' trial (1986), conducted to prevent publication of a book by a former MI5 employee. NODE. to not be completely honest about something. He was economical with the truth – he gave her a censored account of what was discussed. CI. Vladimir Putin is, after all "not above being economical with the truth, and nor for that matter is Mr Trump," says Sir Andrew, now an associate fellow focused on Russia at think-tank Chatham House. BBC Alexander Demidov)
keep it close to the chest(См. с 09 минуты ролика по ссылке: Russia never denied it and never confirmed it. And I am positive: they did that on purpose. The game they are playing is keeping it very close to the chestyoutube.comAlexander Oshis)