A former chief technology officer of the Mozilla project — which produces the open source Firefox browser and the Thunderbird email client — says he was harassed by US Customs and Border Protection agencts at San Francisco International airport on his return from a trip to Europe in December 2018.
A letter sent by two US senators to the country's Customs and Border Protection authority reveals that though the US insists on e-Passports being used by visitors from countries which have a visa waiver arrangement with the US, the smart chips on these passports have not been checked since 2007 because the CBP lacks the technical capability to do so.