Newspaper headlines: Tunisia shootings - 'minute's defiance', UK heatwave and Wimbledon 'sexism'

Newspapers are digesting David Cameron's Commons response to Friday's killings of British tourists in Tunisia.

Some focus on the minute's silence that will be observed a week on from the attacks, with the Sun describing it, external as "a minute's defiance". Others, like the Times, examine the detail, external of the prime minister's statement. It quotes a "Whitehall source" saying that headteachers will be told they must be alert to pupils being radicalised.

As the Guardian explains, it's part of, external what Mr Cameron called a "full spectrum response" to extremism that also includes the creation of an "SAS-style" police unit at Scotland Yard. The paper examines what the government's plans mean for the Home Office and Armed Forces.

However, the Financial Times warns Mr Cameron, external against overreaction. It warns: "His plan to follow through with anti-extremism legislation would create a new category of thought crime, and could alienate some of the very British Muslims on whom the government's counter-extremism strategy depends."

As the Daily Telegraph reports, the PM, external alluded to this reliance when he said the government needed to "raise our game" and ensure Muslims "want to integrate" into society. However, he also said British Muslims must report concerns about family members or friends becoming radicalised.

Ross Clark, in the Daily Express, argues that it's no good for Mr Cameron to say Islamist extremists "have nothing to do" with Islam. "When [Islamic State] posts videos of jihadists reading Koranic verses before beheading their victims as infidels it is pretty clear that their crimes have quite a lot to do with Islam."

The Daily Telegraph has a British take on the Greek debt crisis, reporting Chancellor George Osborne's warning that holidaymakers should carry enough cash to cover all expenses and any potential emergencies.

And it's not just tourists from the UK fearing the worst, with the Daily Mirror reporting that continuing uncertainty, external over Athens' finances wiped nearly £34bn off the value of Britains' biggest firms. Meanwhile, under the headline "Brits come Acropolis", the Sun says British exporters are not being paid by Greek firms.

Other papers focus on the politics at play, with the Financial Times suggesting European leaders, external "are taking a high-risk political gamble" by publicly insisting that Greece's referendum on the terms of the country's financial bailout amounts to a vote on membership of the euro.

Conservative MEP Daniel Hannan, writing in the Daily Mail, external, agrees that's the case. "They will be voting, in effect, on whether they wish to cling to the vestiges of their parliamentary self-rule," he says. But he argues for a very different result than that desired by the EU, saying: "Returning to the drachma would give Greek businesses an immediate competitive boost. Imagine Greek holiday resorts suddenly becoming 40 or 50% cheaper than their Mediterranean rivals."

However, for the Independent, the crisis, external is about "far more than one country's fiscal irresponsibility". It says: "An entire continent is at stake." It argues: "Abandoned to its own political demons and administrative incompetence, [Greece] would face a miserable future."

Ian Traynor's analysis in the Guardian, external suggests that leading European politicians view Greek leader Alexis Tsipras as a "threat to the European order", while noting that German Chancellor Angela Merkel "sounded calmly resigned to the Greek rupture... clear that the single currency's rulebook was much more important than Greece".

And Charles Bremner, of the Times, suggests that Greece's, external exit would have a "silver lining" for the political establishment: "Voters elsewhere will think twice before backing the insurgent populist parties that are promising to dump German-led austerity."

Two weeks of "scorching" weather is promised by the Daily Express's front, external page, which carries the government health warning that the predicted 100F (37.7C) temperatures could be dangerous for children, the elderly or sick.

It prompts the Daily Mirror to offer 21 ways, external to beat the heat which, it says, "could save your life". They include keeping bed linen in the fridge, eating spicy food and unplugging electronic items. The Sun's Me supplement also leads on staying cool with tips including sipping nettle tea and putting your hands in cold water.

The heatwave means one thing for the Daily Star - the prospect of tennis being played at 40C heat on Wimbledon's Centre Court.

"Flame, set 'n match," announces the Sun, which reckons the heatwave could even halt play. "Women's Tennis Association rules say referees must decide whether to suspend matches if it reaches 35C (95F) with 45% humidity," it explains.

That leads the Mail to report cries, external of sexism, pointing out that "cooling off" periods of 10 minutes only apply to women's games when the temperature reaches 30.1C (86F), while the men's game has no equivalent - something it says former champion Andy Murray has previously complained about.

Meanwhile, the Times shows defending champion Novak Djokovic facing an unusual opponent, in the form of a blue tit which landed on Centre Court during his first-round win over Philipp Kohlschreiber.

The Daily Express revels in a victory, external for a "new Wimbledon hero" for the UK, Liam Broady, who came from two sets down to beat Australia's Marinko Matosevic. He and sister Naomi became the first British siblings to play in the same championships in 37 years but the paper says his dad wasn't there to see it because of a family feud.

And Broady was among players told "clean up your act" by officials in a crackdown on foul language, according to the Telegraph.

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