From the TNR editors:

Although the article was rigorously edited and fact-checked before it was published, we have decided to go back and, to the extent possible, re-report every detail. This process takes considerable time, as the primary subjects are on another continent, with intermittent access to phones and email. Thus far we've found nothing to disprove the facts in the article; we will release the full results of our search when it is completed.

And from "Shock Troops" author Scott Thomas Beauchamp:

I'm willing to stand by the entirety of my articles for the New Republic using my real name.