Key legal question
Whether the disability pension could be revoked due to a material change in invalidity
Extracted holding
The file did not establish, with the required degree of probability, that the insured's health or earning capacity had improved enough to end the pension.
Extracted reasoning
No medical clarification showed a recovery. Political activity and the move abroad did not by themselves prove a substantial change in the relevant facts, especially since the original incapacity also rested on physical and psychiatric findings.