The latest allegations about the extent of British and US spying are fuelling the debate about surveillance - with reform of the US National Security Agency appearing inevitable.
President Barack Obama told a press conference that "trust had been diminished" and it was important to take that into account when weighting up how the US "structures these programmes."
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A colder start to the day with outbreaks of rain expected across Wales and southern England.
A further 85 buses are expected to arrive on Tuesday and Wednesday, with officials saying the entire operation will last at least a week.
The reality star had filed a defamation lawsuit against celebrity gossip site MediaTakeOut.com.