Wise words from often-not-wise Richard Cohen:

As with Vietnam, the ending is inevitable. We will get out, and the only question that remains is whether we get out with 3,000 dead or 4,000 or 5,000. At some point the American people will not countenance, and Congress will not support, a war that cannot be won. Just how many lives will be wasted in what we all know is a wasted effort is about the only question still left on the table. Realism dictates as few as possible.