According to this article written on La Musica, Fear Factory has concelled its previously announced south American tour due to scheduling difficulties.

The trek was slated to kick off tonight (Thursday, August 24) in San Jose, Costa Rica and make stops in Argentina, Chile, Venezuela and Ecuador. It is not currently confirmed if the band's scheduled dates in Mexico (Sept. 2 in Mexico City and Sept. 3 in Guadalajara) will be affected by the cancellation.

Source:	blabbermouth.net
Band profile:	Fear Factory