The phrase "intense scrutiny" refers to a close and careful examination or inspection, often with a critical eye. It implies that every aspect of something is being closely analyzed and evaluated in order to determine its quality, accuracy, or effectiveness. The term can be used in various contexts such as political campaigns, scientific research, product testing, or legal proceedings, where the subject matter is undergoing rigorous examination by experts or officials. In short, "intense scrutiny" means a thorough investigation that leaves no stone unturned to reveal the truth or identify any flaws.