From the DU Dictionary:
LIHOP refers to a conspiracy theory, similar to MIHOP, that the administration of US President George W. Bush was aware of the 9/11/2001 terrorist plans and "Let It Happen On Purpose." The most-commonly espoused reason given for why an administration would stand by passively in such a case is the belief that the government could use the incident to its advantage by using it as a tool to whip up public sentiment in favor of a war. (See PNAC.)
Some have speculated that FDR used a similar tactic with the Japanese attack on Pearl Harbor in 1941.
MIHOP refers to a conspiracy theory, similar to LIHOP, that the administration of US President George W. Bush was not only aware of the 9/11/2001 terrorist plans, but was an active participant and "Made It Happen On Purpose." The most-commonly espoused reason given for why an administration would do this is the belief that the government could use the incident to its advantage, by using it as a tool to whip up public sentiment in favor of a war.
Coincidentally, in May of 2001, ABC news reported on a 1960's proposal called "Operation Northwoods", wherein American military leaders considered making terrorist attacks on US soil and laying the blame on Castro's Cuba, for the purpose of creating a public desire for war on that nation. This report has often been cited by proponents of the MIHOP theory.
Supporters have also compared this to 1930's Germany and the Reichstag Fire, in which the Reichstag was destroyed by fire, and communists were blamed, even though it is likely that the Nazi's actually started the fire as a setup to blame the communists in order to elevate Adolf Hitler to power; it worked!
From the Arcom version: Fucktard; anyone who believes the above.