One of the most wonderful features of the English language is its flexibility.
And right now John Kerry needs all of it.
Having passionately proclaimed the /let's go to war/ with Syria viewpoint we are now at the stage of
/wait, now let's not go to war/ with Syria.
BEFORE ... Let us bomb
DURING ... Now About turn
Tense US Russia Talks
NOW ... Let's make a deal
Clairvoyants, please contact us to fill in this section [but then you knew that already, right?]
Personally I believe if the US can find a justification NOT to goto War they will now take it, but I think in the long term i.e. 1 month horizon, it still looks like inevitable military conflict to me.