We could be confronted in a crisis, even short war, with a serious fifth column problem.
Let me turn to the subject of the fifth column.
I propose to be very brief and to talk about subversion, fifth column, quislings—call them what you will.
That, in fact, is a kind of political fifth column.
There is a very active fifth column at work.
Along the way, he is distressed to find that a number of his supposed allies, the neoclassical economists, comprise a fifth column within the anti-socialist camp.
But, in another guise some parts of civil society might be called a 'fifth column'.
The fifth column lists the product of each vote outcome's probability and cohesion score.