This is an announcement for the paper "Norm closed operator ideals in Lorentz sequence spaces" by Anna Kaminska, Alexey I. Popov, Eugeniu Spinu, Adi Tcaciuc, and Vladimir G. Troitsky. Abstract: In this paper, we study the structure of closed algebraic ideals in the algebra of operators acting on a Lorentz sequence space. Archive classification: math.FA Mathematics Subject Classification: Primary: 47L20. Secondary: 47B10, 47B37 Remarks: 25 pages Submitted from: troitsky@ualberta.ca The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/1108.6026 or http://arXiv.org/abs/1108.6026