WASHINGTON  Airline passengers who get frustrated and kick a wall, throw a suitcase or make a pithy comment to a screener could find themselves in a little-known Homeland Security database. The Transportation Security Administration says it is keeping records of people who make its screeners feel threatened as part of an effort to prevent workplace violence. Privacy advocates fear the database could feed government watch lists and subject innocent people to extra airport screening. "Is this going to be the baby watch list? There's a potential for the misuse of information or the mischaracterization of harmless events as potential threats," American Civil Liberties Union lawyer Michael German said. A TSA report says the database can include names, birth dates, Social Security numbers, home addresses and phone numbers of people involved in airport incidents, including aggressors, victims and witnesses. Incidents in the database include threats, bullying or verbal abuse, remarks about death or violence, brandishing a real or fake weapon, intentionally scaring workers or excessive displays of anger such as punching a wall or kicking equipment, the report says. The database was created in late 2007 as the TSA launched a program to prevent the nation's 50,000 airport screeners from being attacked or threatened, agency spokeswoman Kristin Lee said. At the time, TSA officials voiced concern about passengers disrespecting screeners, and they began issuing new uniforms with police-style badges pinned to shirts. Lee said attacks and threats against screeners are "rare" and the database has records from about 240 incidents. Most are screeners in conflict with other screeners. About 30 incidents involve people such as passengers or airport workers attacking or threatening screeners, Lee said. Information about passengers is taken from incident reports that the TSA writes when a traveler threatens or attacks a screener, Lee said. "The program's focus is on prevention," Lee said. The database helps the TSA spot trends in incidents that can shape workplace-safety programs, Lee said. A TSA document published in February says database information can be given to government agencies and to airports, airlines and rail and bus systems in cases involving their workers or job applicants. "They may be contacted by the TSA if an incident involves their employee," Lee said. A.J. Castilla, a screener at Boston's Logan International Airport and an official with a TSA union, said he has seen passengers throw shoes at and push screeners, but incidents have subsided more recently. The ACLU's German said he worries that the incidents in the database are broad. "I've been very angry at an airport because flying can be a very frustrating experience," he said. Guidelines: You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. Read more TOP TRAVEL STORIES Most read Most e-mailed TOP TRAVEL STORIES Most read Most e-mailed

