was to protect human life. people scream. "help, help," they scream in athens as the flames grow closer. people are trying to put out the fires in any way they can. thousands of people have been evacuated. a big national tragedy. i don't live here, my sister lives here but it is horrible for the whole of greece. greece is experiencing its worst heat wave in more than 30 years. authorities have warned that the risk of further fires remains high in many parts of the country. helena wilkinson, bbc news. tony brown is heading out to greece as part of the uk contingent.