Portside

"Ludlow: Greek Americans in the Colorado Coal War" and "The Music of Strangers: Yo-Yo Ma and the Silk Road Ensemble" -- two new documentaries, both of them stunning not only in their execution but in their implications, raise all the critical issues about the worth of human life. One takes place in the violent coal mines of the Southwest a century ago, and another takes place today in many locales leading up to appearances in concert halls all over the world.