Complex sentence: There is a big hubbub at the Citadel because a Batarian ambassador, Jath'Amon is visiting the Council soon to negotiate peace and people are worried as the terrorists are threatening to ruin the peace talks.
Split into simpler sentences: There is a big commotion at the Citadel because a Batarian ambassador, Jath'Amon is visiting the Council soon to negotiate peace. Many people are worried by this, as terrorists are threatening to ruin the peace talks.