[ww520]

IANAL, according to Section 1(1) in [1] for UK, the threshold is for two persons to agree to have the law applied to them. It doesn't require all to agree. And from 1(1)(b), it's not necessarily for the conspired act to be carried out under some circumstance.

For U.S. [2], the threshold for conspiracy against the U.S. government is similar or lower. Item (2) "they interfere or obstruct legitimate Government activity" sounds a lot like what the Google employees were doing.

[1] https://www.legislation.gov.uk/ukpga/1977/45/section/1

[2] https://en.wikipedia.org/wiki/Conspiracy_against_the_United_...