The trial of Sharif Mobley is blocked because the Yemeni government is [ holding him in a secret prison ]( http://www.theguardian.com/world/2014/aug/21/yemeni-officials-disappeared-american-sharif-mobley ) and won't allow him to see the court or his lawyers.
Ссылка: https://stallman.org/archives/2014-may-aug.html#23_August_2014_%28Trial_of_Sharif_Mobley_blocked%29