U4L1vedioImaginebeingabletooverrideMotherNatureandhand-pickthephysicalappearanceandintellectualtraitsofyourunbornchild.Well,thankstomodernscience,whatmayseemfar-fetchednowcouldbethenormforparentstwentyfiveyearsdowntheroad.Theyaresolovable,soinnocent,tenlittlefingers,tentinytoes,toeveryparent’seye,pureperfection.Butwhatifyoucouldtinkerwithperfection,chooseyourbaby’shaircolor,eyecolor,brainpower,howathleticthey’llbe.“Youhavespecifiedhazeleyes,darkhairandfairskin…”WhatseemslikesciencefictioninthemovieGattacaisalreadyhappening.Throughin-vitrofertilization,parentscanactuallychoosetohaveagirloraboy.“Wecanalreadylookforthegenesthat,erh,influenceallsortsoftrivialtraits,likeoureyecolororhaircolor.”Intwentyfiveyears,somegeneticistsbelieve,parentswillbeabletoselectforgenesthathelpwithintelligence,memory,eventalentslikeplayingthepiano.“Thequestioniswhetherornotpeoplewanttousethetechnologyforthatpurpose.”Weposedthequestionatagatheringofpregnantmomsandfoundalotofresistance.“Ithinkonceyoustartchoosing,youknow,howyourbabyshouldlooklike,andwhatitshouldbeorwhatthesexitshouldbe.Youtaketheexcitementoutoftheunexpected…”Buthereisthething,whenweaskedthemummiesthatifitwouldbeokaytochangetheirbaby’sgeneticstoavoidadisease,theanswerschanged.“I’llsayYes.ButagainI’mbeingahypocrite,butIthinkhealthisthemostimportantpart.”Andthatabilityforaparenttoshapetheirchild’shealthmaybethebiggestevent25yearsfromnow.Theoreticallysciencecouldprovidegenestomakebabiessuperresistanttodiseases.Here’show,afewyearsback,scientistsmappedoutthehumangenome.It’salotlikeagiantcodebook,acatalogueofthegenesinthehumanbody.“Wehavealltheinformation,andnoweverybodyispouringoveritwithcomputersandtryingtofigureoutwhatitallmeans.”Noreasonexceptforethicalconcernsthatgeneticmodificationcouldchangeeverything.“Ourviewofchildren,ourviewofparenthood,ourviewofourrelationshipswitheachother,andthereforeourviewofwhatit,whatitmeanstobehuman.Andwedon’treallywanttomesswiththem,Ithink,untilweareveryveryconvincedthatthebenefitsoutweightherisks.”AndwhowillgetthebenefitIntwentyfiveyears,manyworryonlyrichAmericanswillbeabletoaffordgenetictinkering.“Thereisgoingtobeagrowinggapbetweenthehavesandhave-nots.Andsothechildreninrichreallymightbebeautifulandthechildrenofordinarypeoplewon’thaveaccesstothesamesortsofexpensivetechnologies.”WillthathappenintwentyfiveyearsItalldependsonhowpeopledecidetohandlethetechnology.从网易163邮箱发来的超大附件B3U4L1-Video.wmv(63.25M,2011年12月11日2249到期)下载
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