The blaze that killed 72 people in Grenfell Tower in London was caused by “decades of failure” by the UK government and the construction industry that allowed the 24-storey building to be wrapped in flammable cladding, a seven-year public inquiry has found.Related video above: Images show scale of destructionThe fire began in the early hours of June 14, 2017, sparked by an electrical fault in a refrigerator on the fourth floor. What could have been a small house fire instead turned into Britain’s deadliest blaze since the Blitz, after the flames leapt to flammable insulation and cladding, which had been added to the tower during a major renovation the previous year.A 1,700 page report spanning seven volumes laid out a litany of malpractice and negligence, from the cost-cutting measures and “systematic dishonesty” of construction firms to central government’s “deregulatory agenda.”“The simple truth is that the deaths that occurred were all …