恶 第四季

ccc1.BokoHaram&UnnaturalSelection:TheNigeriangovernmentisdeterminedtodrivemilitantsfromaterroristgroupoutofthecountry;Anewgene-editingmethodallowscientiststochangethegenetictraitsofplantsandanimals.                                  2.EscapetoEurope;CycleofTerror:FollowingtherefugeetrailfromtheSyrianbordertoEurope;TheglobalreactiontotheterroristattackinParisimpactsthefightagainstterrorism.                                  3.RighttoDie:Exploringthemoral,politicalandpersonalquestionsraisedbyeuthanasia.                                  4.BeatingBlindness&WhiteCollarWeed:Doctorsandresearchersmakeincrediblestridesinthefightagainstblindness;Strugglingsmall-scalemarijuanafarmersfacecorporatetakeoversastheendofthepot-prohibitionnears                                  5.Meathooked&EndofWater:Examiningtheenvironmentalharmofindustrialmeatoperations;Assessingthedepthsoftheworld'swatercrisis.                                  6.ReturntoYemen&ChurchandStates:ExaminingtheconflictinYemen;ExploringtheongoingbattleforLGBTequalrightsintheUnitedStates.                                  7.PalestineNowandVivaCubaLibre:ExploringthelivesofyoungPalestinianstoday;ExaminingthepoliticalthawingofrelationshipsbetweenCubaandtheUnitedStates.                                  8.AfghanWomen'sRights&FloatingArmories:ViolenceandoppressionarestillafactoflifeforwomeninAfghanistan;Privatemilitarycontractorsprotectglobalcommerce.                                  9.TheFutureofEnergy:Examiningthefutureofhowtomakeanduseenergyandhowtomeetthegrowingdemandascarbonemissionsarecut.                                  10.TrumpinDubai&ChinainAfrica:TheplightofmigrantworkersinDubai;ExaminingtheincreasinglyprominentbusinessrelationshipbetweenChinaandAfrica.                                  11.TheDeal&CityofLostChildren:ExploringtherecentIrandealfrombothsides;TribesofhomelesschildrenlivealongthetracksinKolkata,India.                                  12.TheEndofPolioandCollateralDamage:HealthworkersputtheirlivesonthelineinPakistantoeradicatepolio;ExaminingthedevastatingeffectsofunexplodedordnanceinMyanmarandLaos.                                  13.StateofSurveillance:ShanetravelstoMoscowtomeetwithEdwardSnowdenanddiscussgovernmentsurveillanceprograms.                                  14.HeroinCrisis&NewAgeofNukes:TheeffectsofAmerica'sHeroinepidemicandthenextnucleararmsrace.                                  15.FlintWaterCrisis&LibyaontheBrink:ExaminingtheeffectsofthewatercrisisinFlint,Mich.;InLibya,rivalmilitiasfighttosavethecountry.                                  16.DieTrying:PatientsandtopresearchersacrosstheU.S.discussrecentmeasurestakentotackleALS;ExploringtheregulatoryhurdlesfacedbyALSpatientsanddrugmakers.                                  17.StudentDebt&FecalMedicine:Thecorrelationbetweenstudent-loanborrowingandthesoaringcostofcollegetuition;Amedicalrevolutioninvolvesusingstoolfromahealthypersontotreatsevereintestinalinfectionsinothers.                                  18.TheNew$paceRace&ClosingGitmo:NASAandagrowingcommunityofprivatecompaniesdecidetoprepareforMarsexploration;Ex-detaineesrevealwhatreallyhappensbehindthewallsoftheAmericanprisonatGuantanamoBay,Cuba.