The White House's expert NSA panel may have made headlines ... for telling President Barack Obama to knock off the collection of Americans' meta-data, but surveillance experts said they were surprised that the panel also took to task some controversial non-NSA-related spy tactics as well. One recommendation was to impose much stricter oversight on the FBI's ability to issue National Security Letters (NSLs), which have been used to obtain telephone call records and credit reports in terrorism and espionage cases. Another even more peculiar recommendation by the five national security experts ... was their advice that governments" shouldn't hack into bank accounts and drain funds. "Governments should not use their offensive cyber capabilities to change the amounts held in financial accounts or otherwise manipulate the financial systems," the unanimous Review Group on Intelligence and Communications Technologies report warned Obama. "That was a strangely specific recommendation for something nobody was talking about," Kel McClanahan, executive director of government transparency group National Security Counselors, told ABC News. Michelle Richardson, the American Civil Liberties Union's legislative council in Washington, also said the findings on "NSLs" and government hacking were unexpected -- but welcomed.