How Pakistan deals with the Islamic group - popular among many for its aid to the needy
- is a key test of its pledge to help investigate the Mumbai tragedy and, more broadly, to prevent militants from using its soil to attack both India and Afghanistan.
The U.S. and the U.N. say Jamaat-ud-Dawa is a front for Lashkar-e-Taiba, the group India says trained and sent the gunmen who attacked India's commercial capital last month, killing 164 people and straining what had been improved relations between the countries.
Lashkar-e-Taiba has been an unofficial ally of the Pakistan army in Kashmir, a disputed territory claimed by both India and Pakistan.
Some believe the moment has come for Pakistan, which also backed the Taliban takeover of Afghanistan, to make clear it has abandoned a shadowy policy of using militant proxies as a foreign policy tool.
The country stands before a "moment of change in people's attitudes and thinking" toward militants, Sen. John Kerry said Tuesday in Islamabad.
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Pakistan must see that Lashkar-e-Taiba has "morphed into a more al-Qaida-esque and radicalized entity" that is damaging the country's interests, said Kerry, incoming chairman of the powerful Senate Foreign Relations Committee.
Growing Islamic extremism is tearing at the country's social fabric as well as deterring investment. The secular, pro-Western party that took control of the government in March lost its leader, former premier Benazir Bhutto, in a gun-and-bomb attack blamed on Pakistani militants.
In the wake of the Mumbai attacks, Pakistan has moved against both Lashkar-e-Taiba and Jamaat-ud-Dawa, albeit under intense international pressure.
Interviews this week with officials from both groups and the government examined the extent of the crackdown. On paper, it looks considerable, but questions remain about the long-term impact.
The Interior Ministry says 53 people are in custody, including Lashkar-e-Taiba's purported leader, Hafiz Mohammed Saeed, and two men accused by India of being key plotters of the Mumbai carnage.
Abdullah Ghaznavi, a spokesman for Lashkar-e-Taiba, said some of its members were arrested when troops raided a camp near Muzaffarabad on Dec. 7. The camp was widely known to be a militant training facility before the 2002 ban, but officials have said it was subsequently used only for Jamaat-ud-Dawa welfare activities.
Ghaznavi didn't say what kind of activities Lashkar-e-Taiba was carrying out there more recently.
Ghaznavi would not identify those seized, but said none of its people were detained elsewhere in Pakistan. He also denied media reports that it had any training facilities in the region near the Afghan frontier.
"We don't need any camps now, as we have enough mujahedeen (holy warriors) to fight Indian soldiers in Kashmir," he said by telephone from an undisclosed location.
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Abdullah Muntazir, a spokesman for Jamaat-ud-Dawa, said dozens of the group's members, including nine of its 10 top leaders, had been detained. Others went underground.
Pakistan also has shut the group's offices across the country and frozen its accounts.
The charity publicly severed its links to Lashkar-e-Taiba in 2002, but some doubt its insistence that resources are channeled into welfare projects rather than the struggle for Kashmir.
"This time the ban is more effective," said Arif Ahmed Khan, the top law enforcement official in the southern province of Sindh. "We have choked their breathing" by targeting their funds, he said, though it remains unclear how much authorities have seized.
Still, India has reason to be skeptical. Pakistan has moved against its violent Islamist fringe before, but with patchy results.