the doctors who wrote the prescriptions for those pills could be subpoenaed. in syria, artillery and machine gun fire echo aross crosse the city of homs while a thick smoke from a pipeline explosion hangs overhead e opposition activists say government forces are set on planting every neighborhood that might hold disdent. our arwa damon is in the besieged city. reporter: around 7:30 in the morning began the sustained bombardment, various sounds of artillery being fired, impacting here as well as sporadic, heavy automatic machine gun fire has been heard and this has been the status quo in homs for over a week now. just hours ago, iran began loading what it calls its first home-built nuclear fuel rods. president mahmoud ahmadinejad helped insert the rods into a reactor at a research center in tehran. it is broadcast live. his government insists the technology is needed for medical purposes. western nations believe the iranians are focused on building a bomb. today s move i
saying the world must step up pressure on tehran. the point of the pressure is to bring the iranians back to the negotiating table, and to resolve the issue in a way that prevents iran from having nuclear weapons. martha: president mahmoud ahmadinejad still insisting that this enrichment is also for peaceful purposes. amy kellogg has spent time inside iran, knows it well and joins us now live from london. amy? reporter: martha, it is well-known that iran does need 20% enriched uranium for the research center in tehran but the a renowned, respected nonproliferation expert told me while iran will be able to enrich it 20%, it won t have the technology to actually package the fuel into the rods needed for the medical research reactor. so this is just another reason a lot of people have further suspicions about the true nature