This excerpt taken from the EXPE 10-Q filed Nov 14, 2005.
5.01. The Service Providers shall not be liable for any expense, loss or damage whatsoever arising out of any interruption of Service or delay or failure to perform under this Services Agreement that is due to acts of God, acts of a public enemy, acts of terrorism, acts of a nation or any state, territory, province or other political division thereof, changes in applicable law, fires, floods, epidemics, riots, theft, quarantine restrictions, freight embargoes or other similar causes beyond the reasonable control of the Service Providers. In any such event, the Service Providers obligations hereunder shall be postponed for such time as its performance is suspended or delayed on account thereof. Each Service Provider will promptly notify the recipient of the Service, either orally or in writing, upon learning of the occurrence of such event of force majeure. Upon the cessation of the force majeure event, such Service Provider will use commercially reasonable efforts to resume, or to cause any other relevant Service Provider to resume, its performance with the least practicable delay (provided that, at the election of the applicable Receiving Party, the applicable term for such suspended Services shall be extended by the length of the force majeure event).