"We are checking the plane for bombs" cannot be interpreted as a threat. If it were to be misunderstood as serious, it would indicate an abundance of caution by the airline.
"I am going to blow up a plane" sure can. If it were to be misunderstood as serious, it would indicate an immediate threat to the health and safety of hundreds of people.
"We are checking the plane for bombs" cannot be interpreted as a threat. If it were to be misunderstood as serious, it would indicate an abundance of caution by the airline.
"I am going to blow up a plane" sure can. If it were to be misunderstood as serious, it would indicate an immediate threat to the health and safety of hundreds of people.