they live in a traditional house built around a couyard. anatenshengme to laho in ts youth from qinghairovince. ( reading quietly in arabic ) narrator: now he prays in the mosque five times a day, plus much of the time at home, where he also reads the koran. wen who has been a devotee wisince his youth. ( reading in arabic ) ( reading in arabic ) narrator: in lanzhou, hui muslims today speak the same language and have lifestyles similar to their han chinese neighbors. the biggest difference is that the hui don't eat pork-- a barrier that keeps the two groups from socializing. despite their differences, hui muslims and han chinese live in relative harmony in lanzhou. this school is in a heavily muslim area. of the 600 students, 80% are muslims. teacher: "he shui qing qing." class: "he shui qing qing." teacher: "he shui qing qing." narrator: he shui qing qing-- "the water of the he flows clear." ( instructing in chinese ) narrator: this ithe first year of chinese-language class for rui, ma's youngest daughter. the course of study is determined by the central government and is standardized

. >> reporter: a lot of tibetans in the northwestern province of qinghai. at this temple, pilgrims and monks follow their routine. on the surface, everything seems peaceful. but cameras capture everything and police cars on patrol also reveal the tension in the area. when asked about the self-emulations, locals keep their opinions to themselves. >> translator: i don't know much about that. >> translator: i'm not supposed to talk about that. >> reporter: but a close look inside may offer clues about what some tibetans are feeling. in a hall deep inside the temple precinct, a forbidden photo, a likeness of the dalai lama, adorns the altar. we ask a monk for an explanation. he agreed on conditions that we kept his identity a secret. he described how the chinese sometimes use intimidation on tibetans. >> translator: police officers aim their rifles at us when we're walking in central lhasa, in the tibet autonomous region. all anti-government protesters get arrested. the authorities refuse to tell even family members where they are detaining the prisoners. >> re