large-scale transfers of sensitive missile tech from beijing to riyad. to use burn pit pour rocket fuel show the saudis are at work. china called it comprehensive, strategic partners. telling cnn in a statement, such cooperation does not violate any international law and does not involve the proliferation of weapons of mass destruction. this comes as the biden administration is trying to negotiate a deal with iran. iran has taken a hard line approach to the talks and has refused to talk about limits on its own ballistic missiles. proliferation of ballistic missiles in an already unstable region threatens to trigger a middle east arms race where just about any out come is dangerous. we re seeing all of this really fancy military technology showing up in the region. and we don t have in place any of the kind of institutions or security norms that you d like to see to prevent it from getting used. reporter: as the saudis are