The Pentagon has announced a probe of whether more than a dozen fatal electrocutions of US soldiers in Iraq can be linked to faulty construction at US military bases. Vice President Dick Cheney’s former firm KBR could find itself at the center of the investigation. KBR builds and maintains bases and housing for US troops. Investigators say the company may have improperly grounded electrical wires, which could have caused the deaths. Earlier this month, KBR came under scrutiny after it was revealed the company supplied unmonitored and unsafe water that led dozens of US soldiers to fall sick.