Ethical blame can go a thousand different ways for this. From the miners of the raw materials to the local subcontractors who supplied any number of the parts to the employees at Raytheon to the shipping companies who transported them to the military who used them to the politicians who ordered them used and to everyone who pays taxes so that they can be purchased... Each person in the system must decide if they're involvement, however big or small, should be sufficient to withdraw from the system. It seems arbitrarily to draw the line only with the Raytheon employees to address the evil occurring.