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这位记者很会添油加醋,东拉西扯.
这位江记者很会添油加醋,东拉西扯.
"It would seem unthinkable," said David Harris, former chief of strategic planning for the Canadian Security Intelligence Service. "I wouldn't expect to see any offensive operation against the Americans."
Harris said likely candidates include foreign spies who targeted Americans abroad or businesses engaged in corporate espionage. "There are certainly a lot of mysterious aspects to this," Harris said.
Experts said such tiny transmitters would almost certainly have limited range to communicate with sensors no more than a few feet away, such as ones hidden inside a doorway. The metal in the coins also could interfere with any signals emitted.
"I'm not aware of any (transmitter) that would fit inside a coin and broadcast for kilometers," said Katherine Albrecht, an activist who believes such technology carries serious privacy risks. "Whoever did this obviously has access to some pretty advanced technology."
Experts said hiding tracking technology inside coins is fraught with risks because the spy's target might inadvertently give away the coin or spend it buying coffee or a newspaper. They agreed, however, that a coin with a hidden tracking device might not arouse suspicion if it were discovered in a pocket or briefcase. |
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