From Longman Dictionary of Contemporary Englishveil of secrecy/deceit/silence etcveil of secrecy/deceit/silence etcformalMYSTERIOUS something that hides the truth about a situation Watson deserves credit for lifting the veil of secrecy surrounding Brenda’s death. His pornography was covered by a veil of respectability. → veil
Examples from the Corpus
veil of secrecy/deceit/silence etc• The client has thrown a veil of secrecy over the development, with contractors reluctant to discuss the project.• Justice can not prevail under a veil of secrecy or behind doors that do not open.• He had apparently recovered from his visit to Johanna, hiding his feelings behind the usual veil of secrecy. 