Sentence examples for have heightened concern from inspiring English sources
Recent incidents have heightened concern about background checks in the area.
Recent Supreme Court rulings have heightened concern about the issue, since companies can now give unlimited amounts to so-called super PACs as long as those political action committees do not coordinate directly with candidates.
It is, of course, completely understandable that a recent toxic cocktail of falling advertising revenues, challenge to existing business models from the internet and wider cyclical issues have heightened concern about the BBC's size and scope.
Meanwhile, remarks by its president, Mahmoud Ahmadinejad, suggesting the Holocaust was a "myth" and calling for Israel to be "wiped off the map" and reconstituted somewhere in Europe or America, have heightened concern about Iran's nuclear plans, as perhaps they were meant to.
Recent denunciations of Twitter by leading Saudi religious figures have heightened concern amongst the millions of Saudis who use such services that the authorities want to limit or close their access to such freedoms.
People did not say that they would reject vaccines developed and tested by pharmaceutical companies, but rather that they would have heightened concern.
Recent data, such as September's 9.1% rise in property prices, have heightened concerns among Chinese officials about inflation.
But recent jitters in stockmarkets and commodities markets have heightened concerns that some metal prices have peaked.Even so, the mood in Toronto was celebratory.
Google's disclosures have heightened concerns elsewhere about Street View, which, while popular, has also prompted a backlash from privacy campaigners and some individuals.
Attacks from abroad this spring and summer on government systems and contractors have heightened concerns over security in defense and intelligence systems.
