Dieselgate shows weakness of EU federalism-lite

The current level of EU integration - somewhere between a system of fully sovereign nations and full-fledged federalism - leaves few people enthusiastic.

While establishing a single market has had the support of most politicians, member states are less keen on centralising power - also known as handing over authority to EU institutions in Brussels.

In the field of passenger car certification, this half-hearted integration has led to a situation where it is no big surprise that a V...