[edm0nd]

the amount of explosives would be about the size of a pencil eraser, easily concealable imo. Reports are that they could have modified the existing batteries and put them inside there.

[Scoundreller]

If you had a known good copy, should be able to differentiate on an X-Ray.

Weights might not be right either but they maybe they corrected for that.

Centre of gravity may have changed.