user: input: Article: Asked to explain whether the government has quietly abandoned its pledge, the Treasury said the UK would probably have to accept the status quo on EU migration as the price of continued access to European markets. "No country has been able to agree significant access to the single market without having to accept EU regulations, financial contributions to the EU and the free movement of people" it said.
Critics have suggested the Treasury's "Brexit" calculation demonstrates that the department has no real ambition to see radical reductions in net migration. In the year to September 2014, net migration to the UK was 323,000, according to the Office for National Statistics.
Last month the Office for Budget Responsibility (OBR) said that "net international migration to the UK is an important driver of the economy's underlying growth potential" and leads to a higher employment rate and lower dependency ratio (the number of children and elderly compared to the total population).
The OBR's central budget projection assumes net migration of 185,000 by 2021 (they clearly think it unlikely the government will be able to get net migration down to the levels they promised), and it is this modelling that was included in the Treasury report on the costs of leaving the EU.
The OBR also looked at higher and lower migration scenarios. A "zero net migration" model, it suggests, would lead to GDP 1.9% lower than currently projected and a fall in house prices of 3%, while a higher net figure of 265,000 by 2012 would see GDP 0.8% higher and house prices up an additional 1.3%.
While the OBR assumes that net migration has a positive impact on the economy in the medium-term, those wanting to leave the EU argue that controlling our borders and reducing immigration would be in Britain's long-term interests.
"At the moment any EU citizen can come to the UK to settle, work, claim benefits and use the NHS," leave supporter Michael Gove said at a Leave campaign event today. "We have no proper control over whether that individual's presence here is economically beneficial, conducive to the public good or in our national interest."
The pressure group Migration Watch argues that the effect of immigration on the UK economy is "essentially negligible" and claims there is broad agreement that it harms the earnings of the most poorly paid UK-born members of the labour force.
The OBR also makes the point that looking ahead 50 years, immigrants arriving now would add to age-related spending pressures.  "Higher migration could be seen as delaying some of the fiscal challenges of an ageing population rather than a way of resolving them permanently", it argues.
Nevertheless, it is surprising that the Treasury's calculations don't engage with the immigration debate, given its centrality in the leave campaign's argument.  Many economists argue that Vote Leave's aim to reduce net migration from the EU following "Brexit" would have a negative impact on economic growth, at least in the short term.
It is likely those making the pro-EU case would rather the referendum debate was focused on household incomes rather than immigration and that may be why the impact of changes to net migration was curiously lacking from yesterday's Treasury report.

Summarize.
output: The Conservative manifesto promises to reduce net migration to the UK to the tens of thousands by 2020, but in calculating the cost of Britain leaving the EU in yesterday's report, the Treasury assumes a level still well in excess of that - of 185,000 per year in 2021 and beyond.

input: Article: A team from Thames Water - the people who look after some of the pipelines in London - were doing a regular inspection on this pipe in Walthamstow Reservoir when they came across this mammoth blockage!
Nope its not a fatburg, its a group of zebra mussels!
The molluscs get their name from their stripy shells, and are usually found in freshwater lakes and rivers around Ukraine.
However sometimes they can cling onto boats and end up in there UK as well.
The team from Thames Water have said that work will soon start to remove the mussels and clear the pipe.

Summarize.
output: Take a look at this picture of a water tunnel in London - see anything unusual?

input: Article: The data, presented at the American Society of Clinical Oncology conference, showed some tumours shrank by around a quarter.
The compound will now be taken into more advanced trials.
Scientists said we were now in an explosive stage of merging advances in computing with medicine.
Spotting every difference between a cancerous and a healthy cell is beyond even the brightest human minds.
So the US biotechnology company Berg has been feeding as much data as its scientists could measure on the biochemistry of cells into a supercomputer.
The aim was to let an artificial intelligence suggest a way of switching a cancerous cell back to a healthy one.
It led to their first drug, named BPM31510, which tries to reverse the Warburg effect - the phenomenon in which cancerous cells change their energy supply.
Data from 85 patients showed signs the approach could kill tumours.
The trial was designed to test only for toxicity, but in one patient the tumour shrank by a 25%.
Dr Niven Narain, one of the founders of Berg, said it was still early days for the drug, but claimed supercomputing was the future of cancer.
He told the BBC News website: "I think we're at a very explosive stage, this fusion of biology with technology in helping us understand the basis of this disease more fundamentally.
"It's going to allow us to make better decisions on how we develop drugs, to whom we give these drugs to so that we're able to increase the survival outcome."
The results from these patients are being fed back into the artificial intelligence in order to further target the therapy at those most likely to respond.
The company thinks cancers with high energy demands will benefit the most and is planning a more advanced trial in patients in pancreatic cancer.
Dr Alan Worsley, from Cancer Research UK, said we were only at the beginning of harnessing the huge advances in computing to understand cancer.
"We still don't fully understand how cancer cells get the energy they need to grow or how this differs from normal cells.
"It remains to be seen if a drug developed using this information will help cancer patients, but we need to keep finding new ways to find innovative treatments for patients."
But he said that in order to deliver personalised cancer treatment - that responds to the genetic changes taking place inside each patients tumour - then computers, not doctors, will be analysing the data.

Summarize.
output:

assistant: Early trial data shows a drug developed using artificial intelligence can slow the growth of cancer in clinical trials.