>> we want to welcome our viewers in the u.s. and around the world. here are the stories we are following for you right now on cnn. in the search for malaysian airlines flight 370, the hms echo is moving to the northern end of the search area supporting australia's ocean shield focusing on the area where four suspected pings have been picked up. >> authorities in pennsylvania say 16-year-old alex hribal went on a stabbing rampage at his high school wednesday. they don't know why. police say 20 students and one adult was stabbed in the attack. doctors say some of the injuries are life threatening. the teen is being charged as an adult. >> 92 seats in india's parliament decided as indians head to the poles fls today. the indian capital region among 14 states where people are casting their ballots. the country's five week marathon vote began monday and continues