Task: Translation
Input (English): The reporters were among those approached with information about Valerie Plame as a CIA employee, and have refused to testify before an inquiry into the leak of national security information.
Output (Chinese): 这些记者是接触到有关美国中央情报局雇员瓦莱丽·普莱姆的信息的人之一，他们拒绝在国家安全信息泄露调查之前作证。