A 100 million pound Cancer Centre - which patients have helped to design - has opened at University College Hospital.
Those running the Macmillan Cancer Centre say it will redefine the way patients are treated, focusing on all aspects of their outpatient care.
They will also have the opportunity to take part in leading-edge clinical trials.
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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.