Even in peaceful countries be ready for a siren blast

These days, sirens tend to make the news as false alarms, or when tests of siren systems are reported locally. Most of the time, thankfully, there's no emergency. There's always a risk that people will ignore these audible warnings when something really has gone wrong, however, which is why taking multiple steps to inform the public about an unfolding disaster or accident is so important, say experts. BBC - For…