And who gets to play gatekeeper in this game?
The practice is a typical "gatekeeper" in the NHS.
Schiller said 'there is a gatekeeper in the mind and it's the gatekeeper that stops you being creative'.
Dr. Glassman is a critical gatekeeper in this process, evaluating, among other things, whether promising drugs live up to their claims.
Why? Did some gatekeeper in the sky say, "Suzanne Vega is now black enough for us to put her on this chart?" No, of course not.
Every new operation on the border — such as Operation "Hold the Line," in 1993, and Operation "Gatekeeper," in 1994 — has meant more jobs for young Hispanics.
If you trust the source of the program and want to install it anyway, you can get around Gatekeeper in a couple of ways.
But for big institutional investors, Mr. Sacca, 35, is becoming known as an important gatekeeper in meeting the demand for the private shares of fast-growing Internet companies.
(In the Clinton White House, Vernon E. Jordan Jr. was a presidential gatekeeper; in the Obama White House, it is Reggie Love, said one fund-raiser).
"The courts and the sitting judges need to be ever mindful about their role as gatekeeper in regard to the admission of science," Mr. Harle said.
