Italian 'Old School' politicians are scared by Beppe Grillo: why

Beppe Grillo is not "new school". And "old school" politicians could not care less about him (except career-wise).

He is just a clown (in the bad sense) that got some of the protest votes of people for the lack of anything better to vote for.

Politics-wise Italy was been in a downward spiral ever since the seventies. It's not even politics anymore what they have, it's like a parody of politics, or a lame soap opera.