Is it essential that Israel contribute to the Brit economy by placing these ads? Surely, there are other ways. This is the age of the internet. The Brits, Israel, are not your friends. Continuing to give them intelligence info for free is also not the best idea in the world. If you want to help the Brits, advise them to get their Saudi Friends to gather intelligence for them on potential terror threats.
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from the article: Britain bans ad promoting tourism to Israel for blurring 1967 borders