The planned summit meeting is aimed ______

El  Salvador called Tuesday for a regional summit on ways to fight criminal youth gangs.
   Salvadorean President Tony Saca said American officials of "the highest level" also would be ’invited to the summit on youth gangs, which Mexican President Vicente Fox called "a strategic topic and important for us.’
   The gangs, known as "maras," have increasingly alarmed officials in Central America, Mexico and the United States.
   U.S. officials and gang investigators believe gang members from Honduras, Guatemala and El Salvador may be entering the United States more frequently because of laws targeting gang members in those countries.
   Saca said the summit of Central American and Mexican leaders could be held around the end of June, but did not say where.