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[The Fifth Horseman]

The only way to get Psi-blockers is to Raid Marsec whistling.gif and if you are lucky you will find one or two, be warned though - atacking marsec means they wont sell you stuff like thier armour,machine guns,pistols ect... and they counter atack pretty harshly too. I reccomend doing this towards the end of the game when you can make your own weapons and armour anyways.[/b]

Two words: Stun. Raids.

No retaliation, no hostilities, no nothing in fact.