to be clear, i'm not saying we should have boots on the ground fighting in afghanistan with noened in sight. because advancing freedom is not just the military's job. their departure is not the last chanter of this story. there is no last chapter. there is much more to write and many ways to write it. which brings me back to those robots. they are learning how to imitate humans. that does not mean we humans are obsolete. in fact, we might be more necessary than ever, especially to this little guy. have you seen him yet? this is groot from the guardians of the galaxy. this week the "new york times" reported on it's up-close look at disney's latest imitation. robots that can interact with people. some of the audio an matronics have been showing their age. it means nothing unless people apply creativity and persistence for as long as it takes. look, we may not be able to