Violent computer games are back in the dock for a second day this week, after one was linked to the murder of a 14-year-old boy.
"Ban These Evil Games" is the Daily Mail's front page headline, which says only official action can end this "poisoning of young minds".
The Daily Mirror recruits a psychologist to review nine of what it says are the most violent games.
The paper sums up their contents as "blood, guts and relentless carnage".
Thursday's warning from MPs about the need to improve security in Iraq and Afghanistan prompts the Sun to criticise France and Germany.
It brands them "cowards" and says they need to stop carping from the sidelines, and fooling themselves that they're buying safety, by staying out.
The Independent sees the report as a searing indictment of British and US mistakes.
It wonders how we "might just stave off catastrophe."
The Independent leads on what it says is an environmental disaster for Scottish seabirds.
A lack of food, linked to global warming, means hundreds of thousands of nesting birds of several species have gone hungry and failed to breed.
Meanwhile on the Yorkshire moors sheep have learned how to roll their way over road grids in their search for better pastures, says the Guardian.
The technique was developed by a few adventurous animals, then copied.
The human inventiveness of Francis Crick is celebrated widely, with many comparing his achievements with those of Einstein, or Darwin.
But the Telegraph recalls that aged 10 he was banned by his parents from conducting chemical experiments at home, after blowing up empty bottles.
Several papers believe a statement from Sven Goran Eriksson about his affair was the work of an angry man.
For once, says the Daily Mail, he came out fighting.