Card can be easily cloned, used for tracking purposes, critics say
He pledged the government would protect critical infrastructures from cyberattack
The challenge will be to get various interests working together
Judge finds no probable cause to seize the equipment, orders its return
Adviser would likely have direct access to the president, <i> Washington Post</i> says
Money back but case highlights threat within
Drive holds Social Security numbers, addresses of White House employees
Agency offers $50,000 for info on drive's whereabouts
Courts can't agree if it's unreasonable search or not
