There will be a live debate tonight on Radio Télévision Suisse (formerly TSR) concerning a constitutional amendment that will be voted on by the people this coming 17 June.
The amendment would require a majority of the people and the cantons to approve any international treaty that:
1. Results in a multilateral unification of laws in important domains.
2. Obliges Switzerland to accept future legal rules in important domains.
3. Delegates legal jurisdiction to foreign or international institutions in important domains.
4. Results in costs of more than 1 billion francs or recurring costs of more than 100 million [I suppose they mean per year].
Once again, you should be able to view the program tomorrow via the Infrarouge site.