The head of the Transportation Security Administration warned travelers Friday to expect long airport security lines to continue during the peak summer travel season despite Congress' shifting of $34 million to the agency. Peter Neffenger briefed officials in Chicago on Friday about efforts to address crushing delays in getting passengers through security checkpoints at major airports around the country. Congress agreed to shift forward the $34 million in TSA funding to let the agency pay overtime to existing staff and hire an extra 768 screeners by June 15. The agency is funneling many of those resources to major hub airports...