helsinki finnish police search reporter home seize computer try destroy hard drive protect source link security story newspaper report journalist laura halminen say try smash computer hammer home laptop start smoke call fire brigade accord interview publish employer helsingin sanomat police officer come home fire service investigate blaze take computer search property police say rare operation country rat high protect press freedom case center story halminen another journalist write saturday finnish intelligence center say monitor neighbor russia report get new power watch finns online article publication finland president sauli niinisto release statement say authorities launch investigation leak material use story reporter halminen tell newspaper interview decide destroy computer make sure source protect best possible way sunday police national bureau investigation say officer go property find computer burn basement special home search order carry apartment basement force add say officer act quickly fear material link investigation could destroy report anyone arrest charge newspaper say police also take phone memory stick call worry raid house search scale target journalist totally exceptional finland editor-in-chief kaius niemi say campaign group reporters without border rank finland third 2017 world press freedom index behind sweden norway police search finnish reporter 's home security article