Jack Andraka, teen cancer researcher and Intel International Science and Engineering Fair winner, tells how the loss of a family friend to pancreatic cancer led him on a quest - armed with 9th grade freshman biology - to change cancer diagnostics and create a test to detect the disease at an early stage at the inaugural X-STEM Symposium in Washington, D.C. on April 24, 2014. br br The X-STEM Symposium is sponsored by MedImmune and the Northrop Grumman Foundation and is a program of the USA Science & Engineering Festival. br br Lockheed Martin is the Founding and Presenting Host of the USA Science & Engineering Festival.