The FTCA does not waive immunity for all torts: major exceptions are carved 
out in  
28 U.S.C. § 2680
. These exceptions stipulate that the federal 
government will not be  held liable for the claims against its employees arising 
out of assault, battery, false  imprisonment, false arrest, malicious prosecution, 
abuse of process, libel, slander,  misrepresentation, deceit, or interference with 
contract rights. Also not allowed are  damages from a quarantine imposed by 
the federal government. Claims based on  intentional actions that are excluded 
from the FTCA may be brought as 
Bivens  actions, if they rise to the level of 
constitutional violations (constitutional torts).
Products liability claims are not specifically addressed in the FTCA. However, 
cases  that have dealt with questions of federal government liability for 
defective products  generally dispose of such claims on government contractor 
or discretionary function  grounds. For example, in a toxic tort claim against the 
federal government under the  FTCA for neurological problems suffered by an 
infant allegedly as a result of  exposure to roof sealant, the court held, 
inter 
alia, the claims against the  government were barred under either the 
independent contractor exception or  discretionary function exception. Goewey 
v. U.S., 886 F. Supp. 1268 (S.C. 1995).  Strict liability for ultrahazardous 
activities is not allowed against the federal  government under the FTCA. Laird 
v. Nelms, 406 U.S. 797 (1972). 
Perhaps most significantly, § 2680(a) precludes recovery from the government 
for: 
"[A]ny claim based upon an act or omission of an employee of the 
Government, exercising due care, in the execution of a statute or 
regulation,  whether or not such statute or regulation be valid, or based 
upon the exercise  or performance or the failure to exercise or perform a 
discretionary function  or duty on the part of a federal agency or an 
employee of the Government,  whether or not the discretion involved be 
abused." 
This is the discretionary-function exception, and is discussed more fully below.