Cave explorer Vern Unsworth said Musk's mini-submarine device was a "PR stunt."
"The employees who were involved in the incident will not be working in the store pending the findings of our investigation," a company spokesman said.
Mass unrest threatens Iraq's slow recovery from war with Islamic State.
Congressmen voiced support for weapons adorned with soft toys.
The next step is using stem cells to try to grow pure northern white rhinos in the lab.