Sentence examples for proved difficult to verify from inspiring English sources

It has proved difficult to verify the conflicting claims because the Kurdish government does not allow access to the remote areas, which have been sealed off by pesh merga security forces.

The Bush administration's reports of successes -- refurbished schools here, restored telephone service there -- have proved difficult to verify and measure, largely because, with so many companies and agencies acting semi-autonomously, there has been no centralized way to track accomplishments.

Compelling as they are, the key elements of such developmental accounts have proved difficult to verify empirically.

Compelling as it is, this developmental account has proved difficult to verify empirically because autism is typically diagnosed in toddlerhood, after this process of brain specialization is well underway.

4, 29, 31, 32 Assumptions can prove difficult to verify.

Neutrality proved difficult to maintain, though.

Alas, it proved difficult to find.

Genocide has proved difficult to prosecute.

The effect proved difficult to measure.

Yet reform proved difficult to implement.

The furlough plan proved difficult to enforce.