Mr Broughton said his boss, John Eardley, rang him a week after Mr Farr's death to ask him to retrospectively sign a method statement, a risk assessment and a computer-aided drawing of the barrier's construction.

BBC: Last Updated: Monday, 6 March 2006, 19:55 GMT

"While the government will continue to do everything possible to track down and apprehend agents of terrorism in the country, the president has directed that enhanced security measures be put in place immediately for health workers in high-risk areas, " the statement read.

NPR: Attackers Kill 3 North Korean Doctors In Nigeria

"While the specific document made public may be deemed by some as not particularly consequential, the disclosure of the document and nearly word-for-word disclosure of a confidential board conversation led to concerns that other information -- especially student information we have a duty to protect as private -- was at risk, " said a statement from Deans Michael D.

CNN: Harvard apologizes after secret e-mail search