By Richard Sale

06/18/02 "UPI" -- --- In the wake of a suicide bomb attack Tuesday on a crowded Jerusalem city bus that killed 19 people and wounded at least 70 more, the Islamic Resistance Movement, Hamas, took credit for the blast.

Israeli officials called it the deadliest attack in Jerusalem in six years.

Israeli Prime Minister Ariel Sharon immediately vowed to fight "Palestinian terror" and summoned his cabinet to decide on a military response to the organization that Sharon had once described as "the deadliest terrorist group that we have ever had to face."

But Sharon left something out.

Israel and Hamas may currently be locked in deadly combat, but, according to several current and former U.S. intelligence officials, beginning in the late 1970s, Tel Aviv gave direct and indirect financial aid to Hamas over a period of years.

Israel "aided Hamas directly -- the Israelis wanted to use it as a counterbalance to the PLO (Palestinian Liberation Organization)," said Tony Cordesman, Middle East analyst for the Center for Strategic Studies.

Israel's support for Hamas "was a direct attempt to divide and dilute support for a strong, secular PLO by using a competing religious alternative," said a former senior CIA official.