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Sincethen,manyexpertshavecalledforbetterrulesorevenabanonsimilarwork.Butitisunclearwhowouldsetpoliciesandwhowouldenforcethem."Nothinghaschanged,"saidKiranMusunuru,ageneticistattheUniversityofPennsylvaniainPhiladelphia.MusunurujustpublishedabookaboutgeneeditingandthecaseoftheCRISPRbabies.WhereareHeJiankuiandthebabies?HeJiankuiwaslastseeninearlyJanuaryatanapartmentbuilding.Armedguardswerestandingnearby,leadingsometosuspecthewasunderhousearrest.Theuniversitydismissedhimfromhispositionwiththeschoolafterhisworkbecameknown.Afewweekslater,China'sofficialnewsagencysaidaninvestigationhadfoundthatHeactedaloneoutofdesireforfame.Italsosaidhewouldbepunishedforanyviolationsofthelaw.Sincethen,effortsbyTheAssociatedPresstoreachthescientisthavebeenunsuccessful.RyanFerrell,amediarelationspersonworkingforHe,refusedtocomment.WilliamHurlbut,whohasbeenincontactwithHeearlierthisyear,refusedtosaywhenhelastheardfromhim.AChineseinvestigationseemedtoconfirmtheexistenceofthetwobabies,bothgirls.Thereportsaidtheyandpeopleinvolvedinasecondpregnancyusingagene-editedembryowouldbecloselywatchedbygovernmenthealthagencies.Nothinghasbeensaidaboutthethirdpossiblebaby,whichshouldhavebeenborninlatesummer.ChineseofficialshaveseizedtheremainingeditedembryosandrecordsfromHe'slaboratory."Hecausedunintendedconsequencesinthesetwins,"Musunurusaidofthegeneediting."Wedon'tknowifit'sharmingthekids."WhoHelpedHe?ItisunclearwhoelsemayhavehelpedHeJiankuiinhisresearch.RiceUniversityinTexassaiditisstillinvestigatingtheactionsofMichaelDeem,whosenamewasonapaperHesenttoascientificpublication.DeemservedasHe'sadviserwhenheattendedRiceyearsago.TheAPandothershavereportedonotherscientistsinChinaandtheUnitedStateswhokneworstronglysuspectedwhatHewasdoing."Manypeopleknew,manypeopleencouragedhim.Hedidnotdothisinacorner,"Hurlbutsaid.Scientistsareinvestigatingamassivedie-offofmusselsinamajorriverinthesoutheasternUnitedStates.Theyhopetolearnthecause.In2016,fishandwildlifeofficialsdiscoveredabigdropinthemusselpopulationintheClinchRiver.Theriverflowsabout480kilometersthroughthestatesofVirginiaandTennessee.

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