Due to the deaths of American citizens in Mumbai, the US FBI has been authorized to partner with Indian authorities to investigate. Evidence is mounting that the attackers were not only from Pakistan but the operation was orchestrated from there as well:

Controllers in Pakistan watched live television and warned the gunmen of the arrival of Indian commandos, the report said, citing evidence amassed by the FBI and handed over to the Pakistani government.

The FBI had decoded Skype calls over the internet that were made between the gunmen in two five-star hotels and a Jewish centre in Mumbai with their LeT controllers in Pakistan, identified as Shah, Abu Hamza and Abu Qafa, it said.

Interesting to read they have cracked the skype calls although it was already known that US agents have greater access to GPS (e.g. Garmin) keys for decrypting the satellite communication. Although the attackers operated with very non-technical methods as well, this news will surely add to the controversy about news reporting, mobile technology tracking and monitoring.