I think most people would oppose it if the media were really presenting it as an issue to keep in mind. However, most of the people in the media are very much supporters of such powers, as they are deep believers in the rightness of US institutions and their 'fundamentally benign' nature. If you look at the media, most are still in support of every single war America has ever been in, with the only opposition being on matters of strategy (e.g. "The US should have retreated from Vietnam earlier", not "there was no defensible reason for the war in Vietnam, it was just a blatant display of imperialism"). And I'm not talking about Fox (who pride themselves on such views), but even the most liberal papers or news channels.

Of course, they are very much opposed to such measures in other countries, especially their enemies.