WARNING of a “determined and imaginative enemy,” US Energy Secretary Spencer Abraham has called for countries to find and secure all unprotected nuclear and radiological materials to avoid their misuse by terrorists.

A renewed rise in oil prices stifled a rally on Wall Street today, leaving stocks mixed and investors worrying that costs will climb further despite Saudi Arabia’s vow to boost production.

America’s worst blackout should have been contained by operators at Ohio’s FirstEnergy firm, a three-month US and Canadian investigation has concluded.

America and Canada have formed a joint task force to investigate what caused the huge North American power blackout, and prevent it from happening again.

Terrorists may have targeted the Palo Verde nuclear power plant in Arizona, US Energy Secretary Spencer Abraham said today.

THE UN nuclear watchdog agency yesterday said stricter security measures are urgently needed to keep radioactive material out of the hands of terrorists, who could use it to wreak havoc with “dirty bombs”.