Iran's Bushehr nuclear power plant, to some, is another means by which Tehran can justify nuclear related activities such as uranium processing. VOA's Jeffrey Young speaks to analysts and nuclear experts on the question of whether Bushehr is a factor in proliferation.

Judah Folkman was the 'father of angiogenesis'. He first described a hypothesis where tumours survived by developing new blood vessels and suggested that targeting the VEGF receptor might lead to tumour shrinkage. He was right and Avastin (bevacizumab) was the proof of concept.

Classic paper detailing how cancers are formed, which is still largely valid today.