A note on non-amenability of B(\ell_p) for p=1,2
  This is an expository note on non-amenabilty of the Banach algebra B(\ell_p) for p=1,2. These were proved respectively by Connes (p=2) and Read (p=1) via very different methods. We give a single proof which reproves both. 
Narutaka Ozawa