The European Commission’s Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) has just released its Risk Assessment of Products of Nanotechnologies. In light of shocking new studies last year finding that carbon nanotubes that look like asbestos fibres also pose asbestos-like health risks, the SCENIHR draws particular attention to the risks of carbon nanotubes. Carbon nanotubes are now used commercially in electronics, specialty car and aeroplane parts, reinforced plastics and polymers, fuel filters and sports equipment. However it also warns that other nanomaterials such as nanowires that share the fibre like properties of asbestos are likely to also pose similar health problems.