Please send letters for the website, clearly marked FORUM, to Julia Dawson at: julia.dawson@emap.com or The Architectural Review, Greater London House, Hampstead Road, London NW1 7EJ, England. ENERGY IN THE USA SIR: Thanks for publishing the Genzyme Center in Cambridge by Behnisch (AR April 2004). At last a really intelligent and provocative building in the USA, one that reflects (and reflects on) the issues of our times rather than the superficial rubbish of fashionable form-making. When will this country learn to live with the planet, rather than raping it? Our architects seem Neanderthal in comparison to the extraordinary imagination shown by the Germans, and apparently, from your pages, many other Europeans. We seem to be trapped in a mindless destruction of resources, violent and aggressive attacks on Gaia and stupid excesses. More Behnisch please: more thought; more understanding of the principles involved. And, can you please provide more details and technical specifications, so that we can all understand how such buildings really work? Yours etc Alexander Janis New York