The first of the new Thameslink passenger trains have been shown off for the first time. 115 high capacity trains are being built as part of the Government-sponsored £6.5bn Thameslink Programme.
The trains will run on the current Thameslink route (Bedford - Brighton and Wimbledon loop) and new routes that will become part of a wider Thameslink network in 2018.
The new trains will start running in early 2016.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.