the other approach of the cia in 1970 (but not later), also known as the track ii approach, was an attempt to encourage a military coup by creating a climate of crisis across the country. false flag operatives contacted senior chilean military officers and informed them that the u.s. would actively support a coup, but would revoke all military aid if such a coup did not happen. in addition, the cia gave extensive support for black propaganda against allende, channeled mostly through "el mercurio". financial assistance was also given to allende's political opponents, and for organizing strikes and unrest to destabilize the government. by 1970, the u.s. manufacturing company itt corporation owned 70% of chitelco (the chilean telephone company), and also funded "el mercurio". the cia used itt as a means of disguising the source of the illegitimate funding allende's opponents received. years later on 28 september 1973, unknown bombers bombed itt's headquarters in new york city, supposedly in retaliation.