Are we sure the Wead tapes were recorded secretly?

The NYT reports that Doug Wead secretly recorded private conversations he had with George Bush back when Bush was planning his run for the presidency:

Mr. Wead said he recorded the conversations because he viewed Mr. Bush as a historic figure, but he said he knew that the president might regard his actions as a betrayal. As the author of a new book about presidential childhoods, Mr. Wead could benefit from any publicity, but he said that was not a motive in disclosing the tapes.

"Might"? But of course it would be a flat-out betrayal to make secret recordings of a conversation with someone who came to you as an old friend and sought advice, as Bush purportedly did with the man he called "Weadie" or "Weadnik."

The NYT puts the story of the tapes on its front page, and the first few sentences hint that there may be some juicy morsels in the tapes. But:

The private Mr. Bush sounds remarkably similar in many ways to the public President Bush. Many of the taped comments foreshadow aspects of his presidency, including his opposition to both anti-gay language and recognizing same-sex marriage, his skepticism about the United Nations, his sense of moral purpose and his focus on cultivating conservative Christian voters.

The similarity between the private Bush and the public Bush is so great, in fact, that I suspect the Times is being taken for a ride and Bush actually knew he was being taped:

When Mr. Wead warned him that "power corrupts," for example, Mr. Bush told him not to worry: "I have got a great wife. And I read the Bible daily. The Bible is pretty good about keeping your ego in check."

Bush comes across as a remarkably consistent, morally grounded man. Look at the material about gay rights:

Mr. Bush appeared most worried that Christian conservatives would object to his determination not to criticize gay people. "I think he wants me to attack homosexuals," Mr. Bush said after meeting James Robison, a prominent evangelical minister in Texas.

But Mr. Bush said he did not intend to change his position. He said he told Mr. Robison: "Look, James, I got to tell you two things right off the bat. One, I'm not going to kick gays, because I'm a sinner. How can I differentiate sin?"

Later, he read aloud an aide's report from a convention of the Christian Coalition, a conservative political group: "This crowd uses gays as the enemy. It's hard to distinguish between fear of the homosexual political agenda and fear of homosexuality, however."

"This is an issue I have been trying to downplay," Mr. Bush said. "I think it is bad for Republicans to be kicking gays."

Told that one conservative supporter was saying Mr. Bush had pledged not to hire gay people, Mr. Bush said sharply: "No, what I said was, I wouldn't fire gays."

As early as 1998, however, Mr. Bush had already identified one gay-rights issue where he found common ground with conservative Christians: same-sex marriage. "Gay marriage, I am against that. Special rights, I am against that," Mr. Bush told Mr. Wead, five years before a Massachusetts court brought the issue to national attention.

If the tapes are what they purport to be, respect for Bush should grow. But how do we know Bush and his friend didn't stage the tapes? The Times tells us "The White House did not dispute the authenticity of the tapes or respond to their contents." Did the White House confirm the tapes were made secretly? That they were made at the time they are said to have been made?

The New York Times hired Tom Owen, an expert on audio authentication, to examine samples from the tapes. He concluded the voice was that of the president.

Well, good. But how did the Times convince itself that the tapes were made secretly? To me, they seem too good to be truly confidential conversations with an old friend.