"ENERGY: Scientists charged! The neutron's not so neutral after all"

Every engineering student is taught that electrons have a negative charge, protons a positive charge and neutrons are electrically neutral. Now, scientists claim to have discovered that neutrons are not as neutral as they thought. Using data confirmed by three separate particle accelerators, University of Washington researchers claim that neutrons have three layers of charge--negative/positive/negative--that together sum to zero, accounting for the historical belief that neutrons are neutral. However, the new, more detailed understanding of how that neutrality comes about could enable a new breed of nuclear energy generators and weaponry.
Text: http://www.eetimes.com/showArticle.jhtml?articleID=201807560