The latter has become particularly viscious with a former spymaster, an ex-general and a former CT chief calling into question the securty and defence policies Nick Clegg and the Liberal Democrats.
In their defence, the Lib Dems have positioned their biggest weapon, Paddy Ashdown, who fired a volley against Richard Dearlove, the former head of MI6, saying that "things had changed since he supplied intelligence to Tony Blair about Iraq and WMD". Bull's eye!
But who is right - Britain's G-men or the Granola Army? In a perfect world, it would be very sensible to review the role of Trident in a leisurely way. President Obama is trying to reduce global nuclear weapons in a bid to outflank Iran; if Britain said it was reviewing its nuclear posture, the US would probably be pleased.
In such a world it would also be sensible to review, publicly, what UK agencies have been up to in the War on Terror. Too many accusations have been brought to light to simply dismiss any and all accusations out of hand.
But this is not a perfect world. Far from it. And the Lib Dem's policies are problematic. Saying upfront that Trident has to be reviewed, sends a signal not of careful policy-making but of weakness. To publicly prioritise the review of the security services - without a counteveiling and public commitment to their work - risks undemining their work - as the Obama administration has found.