Schengen Treaty under strain

The Italian Foreign Minister in this report from APF states the Schengen accords "... are one of the two pillars of Europe along with the euro,(that) cannot be questioned."

Note especially when following the meeting between President Sarkozy and PM Berlusconi today, that if there are only two and that of the Euro is one already crumbling, what hope for the EU if Italy continues granting temporary residence permits  travel documents for french speaking Tunisians flooding into Italy?