Why did US help Israel make thermonuclear bomb?

According to a declassified report belonging to 1987, the US government had given sensitive technology to Israel in order to help Tel Aviv develop a hydrogen bomb.

In this edition of The Debate, Press TV has conducted an interview with Ken O'Keefe, a peace activist and former US marine from London, and Richard Hellman, the president of the Middle East Research Center from Washington, to look into the US move to help Israel make a Hydrogen bomb.