oppressive regime. >> the worst fear for the west and israel the emergence of islamic state in the heart of arab world. a foothold in egypt could put iran in influence smack up against israel's entire 140 mile western border. the author of quick sand, america's pursuit of power in the middle east. >> if things go south in egypt, iran will be there, in order to encircle israel and deepen their commitment. >> iran's route is through the muslim brotherhood. they have maintained ties for years. should mubarak step down now, the brotherhood and chosen ally mohamed elbaradei could find themselves in power in egypt and in need of support.