In return, this would increase the availability of uranium by an estimated factor of 30. The NEA report Forty Years of Uranium Resources Production and Demand in Perspective - The Red Book Retrospective (NEA, 2006) points out that by 2020 secondary sources are expected to be depleted and that more exploration is required. This point of view is largely shared by the European Atomic Energy Community (Euratom) Task Force on Security of Supply in its Analysis of the Nuclear Fuel Availability at EU Level from a Security of Supply Perspective (2005).