Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.

The Enchantment of Enhancement Just because we can create superhumans, should we? By Faith McLellan ARTICLE EXTRASSPRING BOOKSStem Cells on ShelvesAn Awkward SymbiosisThe Death of Faith?High in the TreesBloody IsleBooks about BodiesNew Lab ManualsIn Brief The Case against Perfection: Ethics in the Age of Genetic Engineering, By Michael J. Sandel

The Scientist has asked a group of experts to comment periodically upon recent articles that they have found noteworthy. Their selections, presented herein every issue, are neither endorsements of content nor the result of systematic searching. Rather, the list represents personal choices of articles the columnists believe the scientific community as a whole may also find interesting. Reprints of any articles cited here may be ordered through The Genuine Article, 3501 Market St., Philadelphia,

Editor's Note: The thorough and timely review of scientific literature pertaining to a researcher's chosen specialty is fundamental to the process of science, says Nobel Prize-winning geneticist Joshua Lederberg. However, says Lederberg--former president of Rockefeller University and now University Professor at that institution--keeping up with the steady, potentially overwhelming flow of significant published documents can be a daunting chore for the diligent, conscientious researcher. In Oct