Security forces guard the country's tax headquarters after it was bombed by Tamil Tigers rebels in Colombo February 20, 2009. Two rebel Tamil Tiger aircraft attacked the Sri Lankan capital Colombo on Friday, bombing a tax building and injuring at least 27 people.
REUTERS/Nir Elias (SRI LANKA)
People and security forces gather opposite the country's tax headquarters after it was bombed by Tamil Tigers rebels in Colombo February 20, 2009. Two rebel Tamil Tiger aircraft attacked the Sri Lankan capital Colombo on Friday, bombing a tax building and injuring at least 27 people.
REUTERS/Nir Elias (SRI LANKA)

