Top officials agree that UNCLOS would in no way constrain U.S. military or intelligence efforts
The opponents' second claim is that the treaty would prevent the U.S. Navy from undertaking unilateral action, such as collecting intelligence in the Asia-Pacific region, because permission to do so is not explicitly granted in the text. According to Admiral Samuel Locklear, commander of U.S. Pacific Command, however, "The convention in no way restricts our ability or legal right to conduct military activities in the maritime domain." On the contrary, as U.S. Defense Secretary Leon Panetta put it, U.S. accession to the convention "secures our freedom of navigation and overflight rights as bedrock treaty law." Even so, critics point out, the ultimate indispensability of U.S. naval power means that the country can receive the benefits of the convention without being bound by it. Since the world seems to have functioned perfectly well in this halfway house for some time, it would make no sense to codify the convention now. It would be comforting if all that were true. It isn't.
Opponents of U.S. ratification of UNCLOS have argued that U.S. intelligence operations will be complicated by UNCLOS because it will prevent U.S. submarines from gathering intelligence in territorial waters. However, these operations are already regulated by the existing 1958 convention which the U.S. ratified and expects other nations to abide by. Furthermore, the intelligence community has reviewed the treaty and concluded that it was still in U.S. interests to ratify the treaty.