Ok, first let's agree on what happened on Nov 4 and whether Israel's actions were calculated to break the truce on purpose or not. Israeli troops clashed with Hamas and then Israel launched airstrikes within Gaza. Here's what Haaretz said:
.. Last week's "ticking tunnel," dug ostensibly to facilitate the abduction of Israeli soldiers, was not a clear and present danger: Its existence was always known and its use could have been prevented on the Israeli side, or at least the soldiers stationed beside it removed from harm's way.
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It is impossible to claim that those who decided to blow up the tunnel were simply being thoughtless. The military establishment was aware of the immediate implications of the measure, as well as of the fact that the policy of "controlled entry" into a narrow area of the Strip leads to the same place: an end to the lull. That is policy - not a tactical decision by a commander on the ground.
http://www.haaretz.co.il/hasen/spages/1037571.html
I.e. it was a tactical decision to break the truce, and there was no strategic reason or imminent threat that merited the attack.
Ok, now let's examine the timeline.
First this is CNN looking into the issue and admitting that the facts show Israel broke the truce:
http://pulsemedia.org/2009/01/07/rare-t ... ire-first/
Now, Mark Regev conceding the point about Hamas not firing rockets:
http://pulsemedia.org/2009/01/16/regev- ... ceasefire/
But here is a definitive timeline of events showing that the truce was broken on Nov 4 by Israel's attack:
http://pulsemedia.org/2009/01/15/chrono ... ceasefire/
However, Flying Dutchman maintains that rockets fired by Palestinians broke the truce.
But the point is that, as the CNN piece shows, Israel maintained that it had to launch Operation Cast Lead because Hamas had broken the truce and was firing rockets into Israel. This cynical lie is exposed - the truce was holding and no rockets were being fired into Israel at the point Israel chose to break the truce on November 4th.
Edit: Another interview
http://www.youtube.com/watch?v=7ej-h6_C ... feature=iv
Cheers,
Shafique