By Nicholas Earl Sweden’s investigation of the Nord Stream pipelines have bolstered suspicions of “gross sabotage” involving detonations. The recent ruptures in the pipeline were caused by detonations, the country’s security service has determined Swedish and Danish authorities have been investigating four leaks from the pipelines in the countries’ economic zones in the Baltic Sea since they were first spotted at the beginning of last week. “After completing the crime scene investigation, the Swedish Security Service can conclude that there have been detonations at Nord Stream 1 and 2 in the S…