Morning.

It’s Tuesday 1st September: Phones are being shown the door at school, Burnham is setting out his economic stall, and the world’s heaviest parrot is having a very good year.

Kettle on.

🚢 On this day: In 1985, a US-French expedition found the wreck of the Titanic, 73 years after it sank. It was sitting around 13,000 feet beneath the North Atlantic.

Pupils across England are returning to something a little different today: schools are now expected to prohibit mobile phone use throughout the school day.

That means lessons, obviously, but also the bits in between: corridors, breaktime and lunch. The guidance became statutory in June but schools were given until today to start following it.

It's not quite a nationwide order to leave your phone at home. Schools can decide how they enforce the rules, whether that means handing phones in, keeping them switched off in bags or another approach. They can also make exemptions where needed, including for medical reasons or special educational needs.

The government says the aim is fewer distractions and calmer classrooms. There is certainly some distraction to work with: 58% of pupils surveyed last year said phones were used when they weren't supposed to be in at least some lessons.

Somewhere, a Year 9 is drafting a strongly worded letter to their MP.

Andy Burnham will make his first Commons appearance as Prime Minister later today, with a fairly clear message: he thinks the government should have more control over some of the services we all rely on.

He's expected to argue for greater public control of water, energy and transport, saying government involvement can help the economy grow rather than simply cost taxpayers money.

It's an important moment because it gives us a clearer idea of the economic argument Burnham intends to make as PM. Rather than leaving more to the private sector, his pitch is that government can take a bigger role in essential services while still encouraging business and growth.

There are limits, of course. Public finances remain tight, so the interesting bit won't just be what Burnham wants to change, but how much of it he can actually afford.

Today's appearance is also his first time at the Commons despatch box (the box MPs stand behind when speaking) in 16 years. He'll get another fairly intense reintroduction tomorrow when he faces his first Prime Minister's Questions.

Fighting between the US and Iran has flared up again, pushing Brent crude oil back above $91 a barrel. For those wondering, Brent crude is the main international benchmark for oil prices, not David Brent's post-Wernham Hogg business venture.

US forces have struck Iran, Iran has attacked bases used by American forces in Jordan, and Donald Trump has threatened further action. The concern for everyone outside the immediate conflict is what happens next around the Strait of Hormuz.

That's the narrow stretch of water connecting the Persian Gulf with the Arabian Sea, and it's enormously important because roughly a fifth of the world's oil supply normally passes through it. Shipping through the strait has already been heavily disrupted.

For the UK, the immediate thing to watch is energy prices. More expensive oil can eventually mean higher petrol, transport and business costs, which can then feed into prices elsewhere.

None of that means your petrol station is changing its sign because of today's fighting. But another prolonged escalation would make the recent hope of cheaper energy rather less convincing.

Prices in UK shops rose 1.5% in the year to August, according to the British Retail Consortium, up from 0.9% in July and the fastest increase in more than two years. Food prices were 2.8% higher than a year ago. The BRC says higher energy, commodity and other costs are starting to work their way onto shelves.

That's not the same thing as saying everything suddenly got 1.5% more expensive last month. It means prices were, on average, 1.5% higher than in August last year. Still, not exactly the direction anyone was hoping for.

Here's a headline that sounds fairly alarming: almost half of all terrorism-related arrests in Great Britain since 9/11 happened in the past year. There were 3,061 such arrests in the year to the end of March.

But that doesn't mean Britain suddenly experienced an enormous surge in terrorist attacks or plots. 2,819 of those arrests were linked to alleged support for Palestine Action, following the government's decision last year to ban the group under terrorism legislation.

Strip those out and there were 242 other terrorism-related arrests, up just 2% on the previous year. So the headline number is real, but without the Palestine Action context, it tells you something quite different from what you might reasonably assume.

The UK now has full access to all members of the CPTPP, after Canada's participation in Britain's accession took effect today. CPTPP stands for the Comprehensive and Progressive Agreement for Trans-Pacific Partnership, which might be easier to understand if it was called the BTCATP (Big Trade Club Around the Pacific).

Its members include Japan, Australia, Canada, Mexico, Vietnam and several others. Together with the UK, their economies were worth £12.9tn last year. Britain has been gradually gaining access since joining the pact, so today isn't the start of the whole thing. Canada was simply the final member to ratify the UK's accession. More than 99% of Britain's current goods exports to members are now eligible for zero tariffs.

Not exactly pub-chat material, but potentially rather useful if you run a business that exports to Canada.

About 760,000 Child Trust Funds worth more than £1.5bn are still waiting to be claimed.

Child Trust Funds were savings accounts set up by the government for children born between September 2002 and January 2011. Money was put in at birth, and the accounts became accessible when their owners turned 18. The average unclaimed pot is around £2,000. The Financial Conduct Authority is now reviewing whether the 55 companies looking after the accounts are doing enough to track their owners down.

One useful thing if you think there might be one with your name on it: HMRC has a free tracing service. You do not need to pay a claims company to find it for you, which is more than can be said for the companies that'll happily “find” it for you, for a cut.

Researchers at Imperial College London have developed an AI system that can spot signs of heart failure and heart valve disease from an ECG in under two seconds. An ECG is the common hospital test that records the electrical activity of your heart. The AI has been trained on millions of them and can pick up patterns that aren't obvious to the human eye.

In a large US trial it identified heart failure with 81% accuracy and valve disease with 90% accuracy. It's now being tested on NHS patients in London and Bristol.

This isn't an AI replacing your cardiologist. Patients flagged as potentially at risk would still need proper tests to confirm a diagnosis. The hope is that it can work as a very quick early-warning system, helping doctors decide who needs those tests sooner.

Some pleasing news from New Zealand, where 90 kākāpō chicks have officially joined the population.

Kākāpō are critically endangered, flightless parrots native to New Zealand. They're also the world's heaviest parrots and, frankly, look exactly like you'd hope the world's heaviest parrot would look.

The new arrivals take the official population to 325, its highest level since conservation efforts began. New Zealand's Department of Conservation says the species may not have numbered more than 300 for around 75 years.

The chicks aren't counted officially until they're 150 days old and considered independent. The youngest survivor has now passed that milestone, so all 90 have made the books.

Before we go, here’s a short video, narrated by national treasure David Attenborough, about the kākāpō.

That’s all… for now.

Have a great day.

See you tomorrow.