"I do understand the difficulties involved in the policing and integrity of racing, " said Elsworth.
BBC: SPORT | Other Sport | Horse Racing | Trainer Elsworth vows to carry on
This may well reflect the legal difficulties involved in mounting a full-blown attack on an established company's reputation.
They risk hypothermia, or if they're injured there may be difficulties involved in leaving them out on the hills because of that.
Moreover, the practical difficulties involved in a new law are legion.
Tony Blair once tried (unsuccessfully) to merge the Wales office with its Scottish and Northern Irish counterparts and periodically stories surface that merger is back on the agenda, despite the political difficulties involved.
However Anna Brychan, director of head teachers' union NAHT Cymru, warned that her members were concerned about the practical difficulties involved with the proposals, despite their "great eagerness to make maximum use of new technologies in education".
BBC: Plan for social networking site access in Wales schools
If those proxies match global temperature measurements, then it would provide independent confirmation of the global warming trend of the past couple of centuries, without being tangled up in some of the difficulties involved in normalizing the measurements.
FORBES: New Study Shows Independent Evidence Of Global Warming
Sinn Fein appear aware of the difficulties involved in leaving their policing policy in hoc to the DUP, which may explain why they have expressed interest in initiatives such as the policing conference proposed by the US and British governments.
Royal Dutch Shell also reported declines in their fourth quarter profits, and blamed lighter European demand, lower natural gas production (Exxon) along with a high demand for equipment and skilled workers and the difficulties involved in tapping reserves in politically unstable regions (Shell).
Given the difficulties and delays involved in developing new drugs, microdosing could offer the industry a shot in the arm.
India sought to settle its small neighbour's difficulties in 1987 with a peace plan that involved disarming the Tigers, but retreated badly clawed.
During the financial crisis, the credit default swap (CDS) market, a part of the OTC derivatives market, took center stage as difficulties in financial markets began to intensify and the counterparty risk involved in a largely bilaterally cleared market became apparent.
If these difficulties can be overcome, though, the future looks bright to all involved.
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