From the Summary: "The September 11, 2001 terrorist attack on the World Trade Center and the Pentagon led to the closing the following day of 50 of the nearly 260 U.S. embassies and consulates worldwide. In the months prior to the attack, travel warnings were issued and embassies were put on high alert as Osama bin Laden had issued vague, but credible, threats against Americans and American interests around the world. In June 2000 the U.S. Embassy in Amman, Jordan was put on full alert after receiving 'credible evidence' that Osama bin Laden followers were planning to attack it. Additionally, the Department of State advised American travelers to be mindful of the August 7th anniversary of the bombing of U.S. embassies in Kenya and Tanzania. The August 7, 1998 terrorist attacks on U.S. embassies in Kenya and Tanzania resulted in a number of actions by the Administration and Congress. In October 1999, the UN Security Council imposed limited sanctions on the Taliban, and in August 2000 both the United States and Russia agreed to work together to tighten the sanctions. Embassy security budget ramifications of the 1998 bombings continue. In November 1999, Congress expanded authority for State's FY2000 through FY2004 expenditures on overseas security within the Embassy Security, Construction and Maintenance (ESCM) account to $900 million annually, in addition to security funds in the Diplomatic and Consular Programs account (D&CP) for FY2000-FY2004 (P.L. 106-113). In early 2001, Secretary of State Colin Powell had testified before Congress that embassy security is among his highest priorities. The Administration requested a total of $1.3 billion for embassy security and worldwide security upgrades for FY2002. The House concurred; the Senate passed a total of $1.07 billion."
CRS Report for Congress, RL30662