BOSTON – It was to be the biggest mosque in the northeastern United States, a center of worship for Boston’s 70,000 Muslims and a milestone for America’s Muslim community.?Instead, construction of the $24.5 million center has been stalled by lawsuits and a deepening row between Jewish and Muslim leaders that reflects broader suspicions facing American Muslims after the Sept. 11, 2001, attacks. Jewish leaders charge that former and current officials in the Islamic Society of Boston, which is building the 70,000-square-foot mosque, are linked to terrorist groups and have failed to distance themselves from radical Islam and anti-Jewish statements. The Islamic Society denies any connection to terrorism and considers itself victimized by a campaign to taint the mosque with accusations of ties to radical teachings. The society says it has repeatedly distanced itself from anti-Jewish statements by some of its leaders. Among Jewish concerns is whether a former Islamic Society trustee – outspoken Egyptian Sunni cleric Sheikh Youssef al-Qaradawi – praised Hamas and Hezbollah, which the U.S. State Department regards as terrorist organizations. “There is a great deal of anxiety,” said Larry Lowenthal, executive director of the American Jewish Committee’s chapter in Boston, whose Jewish population of 240,000 is the fifth- largest of U.S. cities. American Muslims are watching the case closely. “Unfortunately, I see the Boston case as indicative of a growing trend in anti-Muslim rhetoric that has grown after 9/11,” said Arsalan Iftikhar, legal director of the Washington-based Council on American-Islamic Relations, the nation’s largest American Muslim civil rights group.