The troubled Blackwater era ends in Iraq on Thursday as another firm takes over the once-dominant company's security services contract in Baghdad. Triple Canopy...picks up the expiring contract of...Blackwater Worldwide, which changed its name to XE a few months ago. The State Department decided in January to not renew XE's contract...[It] followed a refusal by the Iraqi government to renew the firm's operating license because of a September 2007 shooting in which the Iraqi government says security guards -- then employed by Blackwater -- killed 17 Iraqi civilians...Losing the contract is considered a huge blow to XE. [also refers to DynCorp]