Ask HN: Google refuses to work due to 'unusual data traffic'

So a friend of mine works for a European newspaper, lives in Tel Aviv and covers the recent events, including visits to Gaza.

Google started to refuse her search requests with this aforementioned message today. Now I'm interested (and this place has quite a high number of Googlers): Is this a weird 'don't search for bombs and rocket terms' kind of terrorist protection gone wrong? Something else? Not any message Google returns ever, likely being related to network services on site or that particular machine?

Seems quite an odd message and.. scary.