11.   The Cuban government claimed it was justified in shooting down the planes, killing four people, because the pilots ignored warnings and entered Cuban airspace.

12.   The men were killed in a Cuban attack on two planes flown by exiles into Cuban airspace.

13.   The Ministry of Foreign Relations said all three planes had penetrated Cuban airspace earlier in the day.

14.   The third plane, which Cuba identified as the command aircraft, stayed outside Cuban airspace, the Castro government said.

15.   When Miami-based planes crossed into Cuban airspace twice this month and dropped leaflets calling for Cubans to take to the streets, the government did nothing.

16.   Whether the attacks were within or outside Cuban territorial airspace is not the issue, said one senior administration official over the weekend.

17.   A Cuban air force pilot said Tuesday that two U.S.-based civilian aircraft ignored his warnings to leave Cuban airspace before he shot them down.

18.   A pilot flew a small plane from Florida into Cuban airspace and dropped anti-communism pamphlets on Havana, Customs officials said.

19.   A third plane violated Cuban airspace, the U.S. agrees, and returned safely to Florida.

20.   A third Cessna, which had violated Cuban airspace, returned to Florida.