Perhaps most difficult for Italy , a trial would raise the possibility of showing collusion at the highest levels of government under the prime minister at the time , Silvio Berlusconi .
Silvio Berlusconi /people/person/nationality Italy
RB RBS JJ IN NNP , DT NN MD VB DT NN IN VBG NN IN DT JJS NNS IN NN IN DT JJ NN IN DT NN , NNP NNP .
Silvio Berlusconi
PERSON
Italy
LOCATION
/people/person/nationality