The troubled website was down for 90 minutes Monday, and more service interruptions are likely, officials say.
Government officials say a recent bill to stop the NSA's bulk collection of telephone records would hurt the agency's ability to catch terrorists.
The current page response times are now less than one second but more work is needed, officials said.
The proposed bill would allow the NSA to continue collecting millions of U.S. telephone records, despite an outcry that the program violates the U.S. Constitution.
The extra hands hope to help the government meet a Nov. 30 goal to have the site working smoothly for the large majority of users
The proposed change in the 1996 Communications Decency Act would remove legal protections for websites from state prosecutions for comments that site users make.
HHS Secretary Kathleen Sebelius also told the Congressional hearing that the website should be working for the majority of users by the end of November.
The director of the NSA told the hearing that ending the agency's bulk collection of U.S. telephone records would set U.S. intelligence back to pre-2001 levels.
The legislation introduced by a bipartisan group of more than 85 lawmakers would end the bulk collection of U.S. telephone records.
The NSA and members of President Barack Obama’s administration have defended the data collection and surveillance programs as necessary to protect the U.S. against terrorism.
A crowd of about 5000 people, chanting "stop spying, stop lying" and "hey, ho, mass surveillance has got to go," marched through Washington, D.C., Saturday to protest the U.S. National Security Agency's mass surveillance programs unveiled in press reports this year.
HealthCare.gov, which has had a dismal start, is one way that uninsured U.S. residents can apply for health insurance under the Affordable Care Act, commonly called Obamacare.
Organizers with StopWatching.us are hoping for a large crowd to protest the NSA’s mass surveillance programs detailed in leaks from former NSA contractor Edward Snowden this year.
During congressional hearings, contractors say they are working to fix website problems with HealthCare.gov and the site is getting better.
AT&T posted gains in revenue and net income for the third quarter of 2013, with gains in mobile phone and U-verse TV subscribers driving the growth.