May 20, 2004 -- The Big Story on Action News is word of suspicious activity along train tracks in our area, and the discovery of a wireless transmitter that seemed to be carefully hidden in the gravel under some tracks in Philadelphia. Needless to say, this has attracted some peoples' attention. While authorities do not want to unnecessarily scare commuters, they say that after terrorist train attacks in Madrid Spain, they are taking all suspicious activity on rail lines seriously. Of most concern is the discovery of that wireless transmitter on a SEPTA rail line. Action News has learned that...