Unregulated accommodation for children aged 16 and over has increased by 70% in a decade, Newsnight learns.
The Royal College of Nursing wants tougher safe staffing rules as 40,000 posts are vacant.
Manchester Airport says a "power issue", which caused 87 flight cancellations, has been resolved.
About 80 trains a day were significantly late and another 660 trains per day were cancelled.
Tory MPs to call for action amid reports No 10 has blocked move to limit scope for prosecutions.