Answer:
Both the Palestine Liberation Organization (PLO) and Hamas are known terrorist groups, as they are prescribed by the Foreign Terr-orist Organization (FTO).
There are some similarities:
1) Both want to eliminate the state of Israel, and refuse to settle for a two-state policy or truce.
2) Both extensively uses sui-cide bombers.
3) Both continues to attack Israel, and spends any money that they are given on military weapons, instead of building up their economy and infrastructures.
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