This week's C&EN

A few articles from this week's issue of C&EN:

• Cover: DNA-encoded libraries (article by Bethany Halford)
• Purifying petroleum without distillation seems like an interesting challenge. (article by Stephen K. Ritter)
• Winners of the Presidential Green Challenge Awards have been announced. (article by Stephen K. Ritter)
• This Lilly cGMP flow chemistry paper was pretty interesting (article by Bethany Halford)
• "U.S. National Institutes of Health backs off funding limits for researchers" (article by Andrea Widener)
• Oh, well. 
• Want to learn about bird compasses? (article by Mark Peplow)
• Some random guy yapping about moving home.