After all, there is a precedent for such activities:
"October 10, 2001 – The Plot to Blow up the Mexican Parliament:
Foiled terrorist bomb plot on the Mexican Parliament building, briefly mentioned for a single second by CNN, and given front-page coverage by papers such as El Diario. Two terrorists -- a Mexican Jew named Salvador Gerson Sunke and a Mr. Sar ben Zui, discovered to be a Colonel with Israeli Special Forces -- were caught red-handed inside the Mexican Parliament building with a machine gun, nine hand grenades, and a sizable cache of C-4 plastic explosives. The terrorists were deported back to Israel with a hand slap and given pardons by a Mexican official named Jorge Gutman."
Therefore, what kind of stench do you think I get from this, reader?
"Mexico: Police Find Small Bomb at Skyscraper.... About 10,800 people were evacuated from the 55-story Torre Mayor in Mexico City, after an anonymous caller warned the skyscraper’s management of a bomb. The police said they had found a small explosive device in a car on one of the parking levels of the office tower. They said the device was too small to have caused significant damage. The city’s public security secretary, Joel Ortega, said it was not known who had planted the device (New York Times August 31, 2007)."
"Explosive found, skyscraper emptied.... More than 10,000 people were evacuated from Latin America's tallest building yesterday after a bomb squad found a small handmade bomb in the parking garage. An unidentified person called one of the offices of the 740-foot Torre Mayor to warn that a bomb had been placed in a car. No one was hurt (AP)."
[This story stinks!]