TPM Muckraker has the letter from Clinton's attorney to ABC Chairman Robert Iger :

Dear Bob,

As you know, ABC intends to air a two part miniseries, "The Path to 9/11," which purports to document the events leading up to the terrorist attacks of September 11, 2001. ABC claims that the show is based on the 9/11 Commission Report and, as Steve McPherson, President of ABC Entertainment, has said: "When you take on the responsibility of telling the story behind such an important event, it is absolutely critical that you get it right."

By ABC's own standard, ABC has gotten it terribly wrong. The content of this drama is factually and incontrovertibly inaccurate and ABC has a duty to fully correct all errors or pull the drama entirely. It is unconscionable to mislead the American public about one of the most horrendous tragedies our country has ever known.(emphasis added)

Read on...

And the Families of September 11 issued the following statement:

As we mark five years since 9/11, we are inundated with the media's portrayal of that tragic day. Television miniseries, Hollywood films, comic books and countless "documentaries" are dramatizing and sometimes distorting the events leading up to and happening on 9/11.

Families of September 11 believes the best way to honor those who were lost is to make sure that what happened to them never happens again. As such, we must understand exactly what took place, and not allow "entertainers" to promote misleading or incorrect information as fact to the public.

If we do not learn from history, we are doomed to repeat it. Any depiction of 9/11 that is not accurate and actual propagates myths, myths that may cause us future harm. In order to make our country safer and more secure, we owe it to those who were lost to acknowledge that
which took place, so that we can ensure it never happens again.