by Janie — Some bac­te­r­ial mol­e­cules have the so­cial graces of cer­tain 1700s French rev­o­lu­tion­ar­ies, or Shakespeare's Richard III, or the Queen of Hearts from 'Alice's Ad­ven­tures in Won­der­land – in that all share a pen­chant for be­head­ing those they en­counter! In the mi­cro­bial case...