BLACK DALEK: Failure will not be tolerated!

CHEN: But I did notify you of the fugitives' whereabouts. The planet Mira. There the vital core can be taken from them without suspicion. Their presence on Earth was a constant danger! At anytime they could have contacted forces unsympathetic to our plans.

BLACK DALEK: You make your incompetence sound like an achievement.

CHEN: Incompetence now, is it? You forget that the original blunder was not of my doing. I journeyed to and from Earth to correct a failing your security force should have dealt with. The core was stolen from here. My actions have brought about a situation which will allow you to recover the missing taranium easily and simply. If that is a failure, then I have failed.