The difference is in how sure the officials are about what they can rule out. That's what's very different here. 'We're not sure what it might be', is very dif

The difference is in how sure the officials are about what they can rule out. That's what's very different here. 'We're not sure what it might be', is very different from the usual 'No comment' that we'd been so accustomed to. You'd wonder whether that's because of: A: Misdirection B: Genuine uncertainty C: A new policy with which to address social media But you know, just the need to shoot something down, disclose that fact publicly, but not reveal exactly what it is (even if it is just a terrestrial source), is pretty freaky.