After Charlie Hebdo attack, do spy agencies need more powers?

And if it is the case that more surveillance powers are required, what should Whitehall demand in terms of extra oversight?The timing of the speech by the head of MI5, Andrew Parker may have looked cynical: a call for more surveillance powers for the intelligence agencies on Thursday, the day after the attack on Charlie Hebdo’s office. In fact, Parker had long planned this speech and almost all of it had been written, other than a few paragraphs, before the gruesome events unfurled in ParisBut