[simonh]

The "unless we both agree" bit implies they reserve a veto on her releasing anything.

[oliwarner]

Literally speaking, sure. Absolutely it could mean that or half a dozen different things.

In the context of an apology about being heavy-handed, I highly doubt it means they intent to suppress speech from a third party that they have no power over, implied or otherwise.

[fourthark]

She mentioned in her post that she did not think it would be legal to release some of the conversations she has had with SO employees.