Israel welcomes the possible resumption of international talks on Iran's nuclear program, but it must prepare for the chance they will fail, Israel's national Security Council chief said Wednesday.

"I am very happy about the resumption of talks between Iran and the big powers, particularly if it results in Iran abandoning its nuclear program. But we must prepare for their failure," Yaakov Amidror told Israeli public radio.

New Delhi police said Wednesday they had arrested a man in connection with last month's bomb attack on an Israeli diplomat's car, which Israel blamed on Iran.

Police spokesman Rajan Bhagat said the man was 50-years-old but gave no details as to the charges he faced related to the February 13 attack.

The United States will ensure Israel retains "military superiority" over its adversaries as the country faces the potential threat of a nuclear-armed Iran, Defense Secretary Leon Panetta said Tuesday.

"This is an ironclad pledge which says that the United States will provide whatever support is necessary so that Israel can maintain military superiority over any state or coalition of states, as well as non-state actors," Panetta told the top pro-Israel lobby in Washington, AIPAC.

Israel's Benjamin Netanyahu on Tuesday winds up a high-profile U.S. visit focused on Iran's perceived nuclear threat after warning that his country would not live in the "shadow of annihilation."

Netanyahu was to meet with U.S. Secretary of State Hillary Clinton and visit the U.S. Congress a day after keenly-watched talks with President Barack Obama against the backdrop of speculation over a possible Israeli strike on Iran.

Two explosions on Monday hit a pipeline which supplies Egyptian gas to Israel and Jordan, marking the 13th such attack in just over a year, security officials said.

Six gunmen in an unmarked vehicle set explosives in two different parts of the pipeline, about 15 meters (yards) apart, one official told Agence France Presse.

Israeli Prime Minister Benjamin Netanyahu told U.S. President Barack Obama Monday that Israel must remain the "master of its fate" in a firm defense of his right to mount a unilateral strike on Iran.

Netanyahu and Obama met for delicate Oval Office talks taking place amid clear differences on the imminence of the nuclear threat from Iran and after weeks of speculation that Israel may mount go-it-alone military action.

A Palestinian student was in critical condition on Monday after being hit in the head when Israeli troops broke up a protest near Ramallah, medical and security sources said.

Palestinian security sources said the student, 20-year-old Mohammed Abu Awad, was hit in the head by a bullet during a demonstration near the Atara checkpoint, five kilometers north of Ramallah.

Israeli Prime Minister Benjamin Netanyahu arrived in the U.S. capital late Sunday for talks with U.S. President Barack Obama on Iran's nuclear ambitions and how to deal with them.

The plane carrying the Israeli leader and his aides touched down at Andrews Air Force Base outside Washington at about 11:05 pm local time (0405 GMT Monday).

Israel has offered to send humanitarian aid to Syrian civilians affected by the regime's crackdown on protests through the International Committee of the Red Cross, the foreign ministry said on Sunday.

"Israel's foreign ministry has offered to transfer humanitarian aid to the people of Syria through the international Red Cross," the ministry said in a statement.

An Israeli court decided Sunday to shorten the administrative detention of a Palestinian woman freed in a prisoner swap with Israel and refusing food since she was re-arrested, her lawyer said.

Hanaa al-Shalabi has been on hunger strike since the day of her arrest on February 16, when she was originally ordered detained without trial for six months.