give warning

“Had a crew member been awake and actively patrolling the Conception on the morning of the fire, it is likely that they would have discovered the fire at an early stage, allowing time to fight the fire and give warning to the passengers and crew to evacuate.”

Madison wrote that history’s guiding light was a beacon “which give warning of the course to be shunned, without pointing out that which ought to be pursued.”

Some existing warning systems alert physicians when this happens—but many patients display at least two of the four criteria during a typical hospital stay, Saria says, adding that this can give warning programs a high false-positive rate.

But for MI6 the reality is that it will need to rebuild an entire network of human informants if it is to successfully place agents "upstream" inside terrorist organisations in Afghanistan who can then give warning that an attack is being planned.

Jonathan Conricus, an Israeli military spokesman, said Israeli forces took care with their targets but were not always able to give warning to residents.