Madrid, Sept 15, SPA -- A Spanish parliamentary commission investigating the Madrid train bombings decided Wednesday to call former prime minister Jose Maria Aznar to testify. The commission has already heard dozens of witnesses including former interior minister Angel Acebes during its investigation into Spain's worst terrorist attacks which killed 191 people on March 11. The commission is probing whether Aznar's government manipulated public opinion by initially blaming the Islamist attacks on Basque terrorists. The conservatives formerly led by Aznar and Prime Minister Jose Luis Rodriguez Zapatero's Socialists had earlier said they regarded Aznar's appearance as "unnecessary", but acceded to the request by smaller parties after Zapatero said Aznar could bring "some new elements" to the investigation. --SPA 1427 Local Time 1127 GMT www.spa.gov.sa/201977