World Wide News (WWN) news/ BBC News - Technology latestnews hacking news technology news new techonlogy bbc usa Hong Kong subway trains collide amid new signal system trials

Hong Kong subway trains collide amid new signal system trials

Unknown 01:26 news/ BBC News - Technology latestnews hacking news technology news new techonlogy bbc usa

Two trains collide during a new signal system trial, threatening travel disruption for millions.

from BBC News - Technology https://ift.tt/2TKuvP2

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