The U.S. Interior Department and Coast Guard issued subpoenas to three Transocean employees more than two weeks ago.

WSJ: Transocean Cites Safety in Bonuses

Around the edges of the fields and on small hills above them, armed Afghan Interior Ministry policemen stood guard.

NEWYORKER: The Taliban��s Opium War

Tuesday's violence began when a group of hardline Islamists tried to attack national guard posts in the Tunis suburb of Manouba, interior ministry spokesman Khaled Tarrouche told the AFP news agency.

BBC: One dead in Tunisia clash between Salafists and police