have no clue. but generally media professionals tend to get things right before they report it. with that said, they can get things wrong, or things may change.
Bullshit. That's what you don't get about the new media. David Glenn is banking on the fact that people won't remember what he's said if he's wrong, but he'll remind listeners what he said if he turns out to be right. He's guessing. Do you honestly think his sources are Wellman, higher, or on the BOT? Meanwhile, you discount people (Rangers/tsy/numbers) who do have those connections simply because their medium is less conventional.
But yes, as you said, you have no clue. You're just assuming. You assume that, because the guy has a radio slot, that he's right. Solid critical thinking skills there.