FRIDAY FIVE: * "The richest 0.1 percent is about to control more wealth than the bottom 90 percent." * Key takeaways on the big climate change deal with China. * Ugh. Police killings at a two-decade high. And that number might be even higher. * Why you shouldn't get too excited about the Mars One venture. * A preliminary look at the Smithsonian's plan to revamp the national mall .