Her conclusions were a closely guarded secret until a public meeting on Tuesday night.
The number of Sentinels that the Air Force operates remains a closely guarded secret.
The sad truth is that good fishing is always private, extremely expensive or a closely guarded secret.
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Le Tissier has publically backed the consortium fronted by businessman Tony Lynam, but the identity of the main investor remains a closely guarded secret.
Precisely why isn't clear: PunchForce is a closely guarded secret at HBO.
Michael Tibbs, a South African orchid expert who worked at Kew Gardens, said exactly where the plant was found was a closely guarded secret.
BBC: Lady's Slipper rare orchid to have Chelsea show security
The full range of U.S. cyberweapons is a closely guarded secret.
Google employs proprietary technology and the details of its ranking algorithm, the process which determines what tops the list when search results are returned, is a closely guarded secret.
Although the identity of the winner is meant to be a closely guarded secret, the Cameroon striker let the cat out of the bag following their midweek friendly win over Senegal in France.
Ownership of the remaining half of Rosukrenergo was a closely guarded secret until April, when, amid news of a possible U.S. Justice Department investigation, two mysterious businessmen, Dmitry Firtash and Ivan Fursin, came forward to claim their stakes (respectively, 40% and 10%).
The cell, the cost of which is a more closely guarded secret, is 15-20cm across and is water-cooled.
Seattle's Visqueen has long felt like a closely guarded regional secret, in part because singer Rachel Flotard spent the past few years caring for her terminally ill father.
As the head of Google's antiwebspam team, he's rewriting the complex set of rules for ranking Web pages based on their relevance to a given query, which is the company's DNA, its single most important product and a trade secret more closely guarded than the recipe for Coke.
It is a secret that is guarded as closely as the price it costs to join a club that is only open from October to May.
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