Jane Corbin writes on BBC News:The BBC has researched how much some private contractors have profited from the conflict and rebuilding. A US gagging order is preventing discussion of the allegations. The order applies to 70 court cases against some of the top US companies.While Presdient George W Bush remains in the White House, it is unlikely the gagging orders will be lifted. To date, no major US contractor faces trial for fraud or mismanagement in Iraq. The president's Democratic opponents are keeping up the pressure over war profiteering in Iraq.Henry Waxman, who chairs the House committee on oversight and government reform, said: