Vertaling van "period time until it suddenly became enormously urgent again " (Engels → Frans) :

Off it went for a long period of time until it suddenly became enormously urgent again when the government re-introduced it in March 2009, again with much fanfare, saying that this was incredibly urgent.
En mars 2009, au terme d'un long silence, la question est soudainement redevenue extrêmement urgente lorsque le gouvernement l'a remise sur le tapis tambour battant.