In the article 'Cancer breakthrough: scientists discover harmless bacteria in soil kills cancer tumors' Natural News brings us breaking news from the  
Society for General Microbiology's July 2011 Autumn Conference.
 
Here is an excerpt

'Researcher Aleksandra Kubiak just presented the startling discovery at the Society for General Microbiology's Autumn Conference currently underway at the University of York in the UK. She and other members of a research team from the University of Nottingham and the University of Maastricht have found that a strain of harmless bacteria that is widespread in soil is actually deadly -- not to people but to cancerous tumors'.

Should you want to learn more about this exciting break through here is the link to the web site:

http://www.naturalnews.com/033505_soil_bacteria_cancer_tumors.html