Ending days of speculation about whether they had agreed to a cease-fire with Israel, Hamas and Islamic Jihad on Tuesday denied that they would halt terrorist attacks "without making Israel pay a price." Hamas leader, Khaled Mashaal, the Syria-based head of the movement's political bureau, said there would be no discussion of a truce before the Palestinians test Israel's intentions and receive assurances from the international community that Israel would halt its attacks on the Palestinians. He described the recent talks between Hamas officials in the Gaza Strip and Palestinian Authority Chairman Mahmoud Abbas as "positive." "We agreed that the...