In this week's Science, investigators at the John Innes Centre in Norwich, UK, and at the Queen's University in Belfast report on "a role for the Arabidopsis RNA silencing enzyme DICER-LIKE 4, DCL4, in transcription termination of an endogenous Arabidopsis gene, FCA." The John Innes-Queen's University team says that DCL4 "promotes transcription termination of the Arabidopsis FCA gene, reducing the amount of aberrant RNA produced from the locus."