chicago-bound explosives same as those used in detroit plot

US media reported Saturday that explosives were found in Dubai and Britain with al-
Last Christmas, al-Qaida tried to blow up a plane over Detroit.
Preliminary inspections reportedly revealed that the devices contained PETN, the same explosive material used by the Nigerian terrorist Umar Farouk Abdul Mutalab.
This substance is very effective.
Official confirmation has not been received.
Meanwhile, CNN released a photo of a device found en route to the United States showing a printed circuit board on a disassembled phone.
\"This size and shape of the PCB (
Printed circuit board)
This is typical for mobile phone-type devices, \"said Olivier Clegg, hardware application engineering manager at a large US company.
Mobile phone parts manufacturers.
CNN Photos of the display circuit (Photo: AFP)
White House counter-terrorism adviser John Brennan later told reporters that the explosives were \"intended to try to carry out some form of attack,\" but he did not provide further details.
\"The forensic analysis is in progress,\" he added, \"Obviously, from the initial observations, the initial analysis, the material found in the equipment being discovered is intended to cause harm.