Why do the Israeli forces threaten to carry out a massive offensive against the Palestinians?

Israeli-Israeli troops have besieged the Palestinian National Authority headquarters in Ramallah, the first military operation in this region since last November. Twenty armed vehicles and jeeps took part in the operation. Israeli forces have been threatening to carry out a massive offensive against the Palestinians after a suicide attack in the Kami crossing that killed six Israelis.
Question: Why do the Israeli forces threaten to carry out a massive offensive against the Palestinians?

British police have made a fifth arrest in connection with the attack on the airport in Glasgow, Scotland on Saturday and the failed bomb attacks in London on Friday. Police said they arrested the latest suspect in the city of Liverpool. They also are holding two men who were in the burning vehicle that crashed into the main entrance at Glasgow airport.
Question: Where did the attack take place?