BBC:

In a letter published in Science and Nature, the teams call for an "international forum" to debate the risks and value of the studies.
US authorities last month asked the authors of the research to redact key details in forthcoming publications.
A government advisory panel suggested the data could be used by terrorists.
Biosecurity experts fear an altered, more contagious form of the virus could spark a pandemic deadlier than the 1918-19 Spanish flu outbreak that killed up to 40 million people.
'Right step'
The National Science Advisory Board for Biosecurity (NSABB) recommended key details be omitted from publication of the research, which sparked international furore.