And given the costs and risks of intervention, we must always measure our interests against the need for action.

WHITEHOUSE: President Obama��s Speech on Libya

The seminal measure nevertheless reached (and has remained on) the statute book, thanks in no small measure to the support of Dr Duncan Guthrie and other volunteers and finally through the intervention of Prime Minister Harold Wilson, who ensured the passage of the Bill just before the general election of 1970.

BBC: Alf Morris, the 'quiet revolutionary'