Astonishingly, in spite of decades of research, there is no agreed theory of cancer, no explanation for why, inside almost all healthy cells, there lurks a highly efficient cancer subroutine that can be activated by a variety of agents - radiation, chemicals, inflammation and infection.
Anonymous blog comments, vapid video pranks and lightweight mash-ups may seem trivial and harmless, but as a whole, this widespread practice of fragmentary, impersonal communication has demeaned personal interaction.

