He highlighted a series of policy questions that would be difficult to discuss openly.

NPR: U.S. Report Links Climate Change to Security

Politics and religion, while not completely off limits, are also difficult to discuss without getting people riled up, he adds.

FORBES: What Not To Say At Work

Expanded attention to cybersecurity is a good thing, but it seems that it is difficult to discuss this topic without exaggeration.

FORBES: Putting 'We Are At Cyberwar' Rhetoric To Bed

The fact that counterterrorism operations are covert makes them difficult for politicians to discuss.

CNN: Commentary: What the Iraq mission cost Bush

Mr Paranjpe has said that the ability to discuss difficult decisions with Mr Vaswani during the economic downturn has given Wipro's bosses an advantage over sole supremos.

ECONOMIST: Schumpeter

It seems to be difficult to even plan a date for a meeting to discuss what to do, let along actually decide what to do.

FORBES: Solving the Eurozone Crisis

The forensic work was made more difficult because Assange had declined to discuss the matter with military officials.

NEWYORKER: No Secrets

After struggling in a disappointing 6-4 loss to the New York Islanders on Tuesday night, Fleury needed time to gather himself enough to discuss his difficult outing.

WSJ: Fleury struggles in Penguins' 6-4 loss to Isles

His departure comes at a difficult period for the RFL, as they wait to discuss the pitch invasion which occured after the Challenge Cup semi-final between Hull and Leeds.

BBC: Tunnicliffe quits league post

"Any more proliferation of arms and any more fighting is going to make our job more difficult, " she told Reuters news agency in Turkey, where she was meeting officials to discuss the refugee crisis.

BBC: France backs ending EU arms embargo on Syria