itv.com — Bob Diamond to 'tough it out' Barclays Chief Executive Bob Diamond has sent the following letter to Mr Andrew Tyrie MP, the Chairman of the Treasury Committe, this evening: Dear Andrew (Tyrie), You indicated in comments to the media yesterday that you plan to convene a Treasury Committee meeting before the recess to discuss Barclays announcement yesterday that we have agreed to pay total penalties of £290m to authorities in the UK and the US following an investigation into the submission of various interbank offered rates.