US military targeting WikiLeaks over release of video?

In December 2008 Wikileaks "released the secret internet censorship lists of Thailand's Ministry of Information and Communication Technology (MICT)."   In response, following in North Korea's footsteps, Thailand censored Wikileaks.

Last week, the New York Times reported that the Pentagon was now out to get Wikileaks.  

According to the Guardian, WikiLeaks, winner of Amnesty International's new media award for 2009, "serves as an uncensorable and untraceable depository for the truth, able to publish documents that the courts may prevent newspapers and broadcasters from being able to touch." On March 19, Scott Horton (h/t Brown) wrote in Harper's "What does the Pentagon have in common with North Korea, China, Zimbabwe, and a number of private Swiss banks? They all feel threatened by WikiLeaks, the Internet service that offers whistleblowers an opportunity to publish documents that expose corruption and wrongdoing by state and private actors."   Horton continued, "This week, WikiLeaks published a 32-page secret Defense Department counterintelligence study of WikiLeaks, which suggests that the American military was preparing to (or perhaps even did) attempt to hack into and shut down the site"

In the past 48 hours Wikileaks.org alleged that it "is currently under an aggressive US and Icelandic surveillance operation."   If you check the subsequent updates to the organization's twitter feed, they read like passages out of a good spy novel.  Here they are (more recent tweets first):

• To those worrying about us--we're fine, and will issue a suitable riposte shortly. about 9 hours ago via bit.ly
• We have airline records of the State Dep/CIA tails. Don't think you can get away with it. You cannot. This is WikiLeaks. about 24 hours ago via bit.ly
• We have been shown secret photos of our production meetings and been asked specific questions during detention related to the airstrike. 8:59 PM Mar 23rd via bit.ly  
• If you know more about the operations against us, contact https://secure.wikileaks.org/ 8:56 PM Mar 23rd via bit.ly 
• One related person was detained for 22 hours. Computer's seized.That's http://www.skup.no 8:43 PM Mar 23rd via bit.ly
• Two under State Dep diplomatic cover followed our editor from Iceland to http://skup.no on Thursday. 8:35 PM Mar 23rd via bit.ly 
• If anything happens to us, you know why: it is our Apr 5 film. And you know who is responsible. 8:33 PM Mar 23rd via bit.ly 
• WikiLeaks is currently under an aggressive US and Icelandic surveillance operation. Following/photographing/filming/detaining. 8:31 PM Mar 23rd via bit.ly

Barret Brown at True Slant, who live-blogged reports of the surveillance operation against WikiLeaks yesterday, believes that contents of the "April 5 film" may relate to a "predator strike gone wrong."   This is what Wiki Leaks had previously informed the public about the film:

Finally cracked the encryption to US military video in which journalists, among others, are shot.  Thanks to all who donated $/CPUs. 7:18 PM Feb 20th via bit.ly 

A recent story about WikiLeaks is posted at SBS.com.    Wikileaks needs donations.

UPDATE
 This Gawker article has further speculation on the nature of the video, claiming it may relate to this controversy surrounding a video of a May 2009 air strike in Afghanistan.