The vast majority of companies surveyed (81 percent) will not reduce business travel as a result of the attempted terrorist incident on Christmas day, according to a report released Tuesday by the National Business Travel Association. Only 2 percent of the 152 travel managers who responded said they would reduce international travel, and none said they would reduce domestic travel. Sixteen percent said they were still assessing the situation. Respondents were split as to whether the incident raises new concerns about the safety of air travel: 43 percent said yes, while 42 percent answered no. Slightly more than one-third of the travel managers (36 percent) believe the new Transportation Security Administration directives raise a new level of concern about the comfort or convenience of air travel.