The amount of the fee depends on a variety of factors, including the difficulty of the question and how long it will take the expert to answer it.
As fruitful as it may be, archaeology in Sudan faces many challenges, including the difficulty of protecting sites from development projects.
The chief state's attorney, Kevin T. Kane, agreed that his office had not pursued the delinquent jurors, saying other matters had taken precedence and citing obstacles to enforcement, including the difficulty of proving deliberate avoidance.
The independent feasibility study published in 2015 found that resettlement could be viable, but also highlighted significant practical challenges, including the difficulty of establishing modern public services, healthcare, education and economic opportunities, particularly job prospects.
Indeed, while many cancellations were made out of respect for victims and the rescue effort, more mundane concerns were also snagging plans, including the difficulty some performers faced obtaining visas because of closed consulates in foreign countries.
David Strow, a spokesman for Harrah's Entertainment, which owns the Harrah's casinos, said the company thought there were "too many unanswered questions," including the difficulty of verifying the age and location of players.
Moves were being made to attempt to repatriate McCollum to Northern Ireland, and last year Stormont justice minister, David Ford, approved an application for her repatriation on several grounds, including the difficulty encountered in maintaining family contact.
She said this week that the new American trade law had helped her to offset some of the many barriers to selling to the United States, including the difficulty of getting loans for equipment and materials at affordable interest rates.
People briefed on the matter cited a number of factors, including the difficulty of putting together a complex tax-free transaction and differences over matters like potential breakup fees.
