Iran's judiciary has concluded investigations into two detained Iranian-Americans accused of conspiring against the country's security, a senior judge said. But no decision has been made on whether they will be put on trial, he said. "Investigation into Haleh Esfandiari and Kian Tajbakhsh is over," said Teheran Deputy Prosecutor Hasan Haddad late Sunday, according to the official IRNA news agency. Haddad said the two scholars now had "some written work" to do before a decision is made about their fate. He did not explain what written work would be required from the two scholars, who have been detained since May in Teheran's notorious Evin prison.