Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What does Karen use to destroy the TraviCom satellite? Title: Congo Movie plot: While testing a communications laser in a remote part of the Congo jungle, TraviCom employees Charles Travis (Bruce Campbell) and Jeffrey Weems (Taylor Nichols) discover the ruins of a lost city near a volcanic site. Karen Ross (Laura Linney), assisting at TraviCom's headquarters, does not hear back from their team and activates a remote camera at the camp, discovering the camp destroyed and numerous corpses; something large suddenly knocks over and destroys the camera. Karen alerts TraviCom's CEO and Charles' father, R.B. Travis (Joe Don Baker), who informs her that the group was really there looking for a rare blue diamond only found there which would greatly enhance their capabilities, but does not offer any hope to rescue them. Travis implores Karen to lead an expedition and she makes Travis swear that he is sending her to look for Charles, not the diamond. Meanwhile, Dr. Peter Elliott (Dylan Walsh), a primatologist at the University of California, Berkeley, and his assistant Richard (Grant Heslov) teach human communication to primates using a gorilla named Amy (voiced by Shayna Fox). With a special backpack and glove, her sign language is translated to a digitized voice. Despite the success, Peter is concerned that Amy is having nightmares and psychological problems, due to several drawings Amy has made of jungles and the Eye of Providence. Peter attempts to gain funding to take Amy to Africa, but the university is reluctant, and Peter begins inquiring elsewhere. Romanian philanthropist Herkermer Homolka (Tim Curry) offers to fund the expedition; Karen, having learned of the trip, offers to fund it as well and to come along, hoping to discover the fate of her team. In Africa, the group meets their expert guide Captain Munro Kelly (Ernie Hudson) but they are captured by the local authorities and militia leader named Captain Wanta (Delroy Lindo) who grants them passage for a sizable bribe. As the group boards another plane, Munro reveals that Homolka has led previous safaris in search of the "Lost City of...
The answer to this question is:
laser