3 494 News Today

>> reporter: who can forget that painful peak back in early april. national average of $3.494 a gallon. now, around the country, prices have plunged. all the way done to an average of $3.54. and department of energy says it will be on cruise control around those prices throughout the summer to labor day. >> any relief at the gas pump for americans that at least have jobs is good news. >> reporter: what is behind the drop? experts say the tough economy means less demand combined with plunging pri...