The purpose of sovereign immunity laws is to protect government bodies from excessive lawsuits and liability. (philadelphiapersonalinjuryblog.com)
However, the state and its employees have sovereign immunity from tort liability except when the state has expressly waived its immunity. (thefinelawfirm.com)
The federal government and each state government still maintain sovereign immunity laws, but revised legislation added exceptions to the original rules. (perraultlaw.com)