From his Commons statement and from the briefings we have had subsequently - it's clear David Cameron feels the cooperation with Algeria over the last few days could have been better.
The four calls the Prime Minister had with his Algerian counterpart were all initiated by Downing Street.
Despite the "technical and intelligence" offered by the UK - including experts in hostage negotiation and rescue - this was not accepted by the Algerians.
The offer is still on the table - but it has still not be taken up.
Mr Cameron also urged that the UK and the other countries affected, like the United States and Norway, should be consulted before any action was taken.
We know that was not the case - and it was only during one of the phone calls (initiated by Number 10) when Mr Cameron was informed that the Algerian military were attempting to resolve the crisis with their own military.
As for the number of Britons still involved - it's thought it could number around a dozen.
The military operation is over - but the risk to those workers at the site - is not.
For more on the Prime Minister's Commons statement click here.