NEW : Billion is in addition to $ 200 million provided for fighting organized crime . The slayings provided brutal evidence of what analysts say is a dramatic spike in violence across the region as Mexican drug cartels expand their reach . ` Clinton says the U.S. will send $ 300 million in aid to Central America this year . Comment: Analysts say violence is growing in the region as Mexican cartels expand their reach .
NEW : Billion is in addition to $ 200 million provided for fighting organized crime . Clinton says the U.S. will send $ 300 million in aid to Central America this year . Comment: Analysts say violence is growing in the region as Mexican cartels expand their reach .