Ms. Clinton acknowledges Pak as a training centre for terrorists?

"We know that much of the training and the direction for terrorists comes from Pakistan and the border area with Afghanistan," Clinton told reporters at the Foggy Bottom headquarters of the State Department.

"One of the reasons why President Obama made the decision which he announced last week with respect to our strategy going forward is because we continue to see a syndicate of terrorism that al-Qaida is, in effect, the head of that is not only an aspirational or ideological head, but providing funding and training and equipping and operational direction to a number of terrorist groups," Clinton said.

"And therefore, we will remain very vigilant at home," she said.

Clinton also expressed concern over "a series of arrests". However, the article only mentions Headley. Who are the others?