The attorney-client privilege protects the communications of an attorney giving legal advice to a client by preventing courts or adversaries from compelling their disclosure. The oldest privilege for confidential communications, it has been described as "one of the most revered of common law privileges" and as "a time-honored sanctuary." Yet despite the privilege's long-accepted place in US' common law and statutory traditions, recent developments threaten its continued vitality. There is, however, a threat to the attorney-client privilege that is more dangerous and much less recognized than any coming from within the US. This article will show that unless US courts take action, the US attorney-client privilege for international companies will no longer be defined by US courts and lawmakers, but will instead be limited to the lowest common denominator of attorney-client privileges recognized abroad. The devastating impact of compelled foreign disclosure on the US privilege will soon become apparent.