 Abby cannot identify the C-4 used in the bomb, and Director Morrow indicates there may be other factors involved.Gibbs later meets Ari Haswari, a double agent for the FBI with whom he has had complications previously.FBI agent Fornell is called in to inform Gibbs about Ari's mission in the US, and together with Director Morrow, he tells Gibbs not to interfere with the mission.